mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-10-22 07:44:04 +02:00
Code Issues Projects Releases Packages Wiki Activity
mariadb/storage/spider/ha_spider.cc
Yuchen Pei 39aeab3b6d
 MDEV-27260 Implement spider select handler 
And add a variable spider_disable_select_handler, just like
spider_disable_group_by_handler. As part of the rollout process,
spider_disable_select_handler defaults to 1. The gbh will be
deprecated in due course. All spider tests are run twice, once with
the gbh and once with the sh.

Technically, the sh shares subroutines used by the gbh, and for now as
the V1 implementation it shares some similar limitations as the gbh:

- does not support statements with subqueries
- does not support tables with more than one read partitions
- only supports statements where all remote tables are on the same server
2025-10-02 19:27:21 +10:00

10371 lines
309 KiB
C++
Raw Permalink Blame History

/* Copyright (C) 2008-2019 Kentoku Shiba
Copyright (C) 2019-2023 MariaDB corp
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#define MYSQL_SERVER 1
#include <my_global.h>
#include "mysql_version.h"
#include "sql_priv.h"
#include "probes_mysql.h"
#include "sql_class.h"
#include "key.h"
#include "sql_select.h"
#include "ha_partition.h"
#include "spd_param.h"
#include "spd_err.h"
#include "spd_db_include.h"
#include "spd_include.h"
#include "ha_spider.h"
#include "spd_table.h"
#include "spd_sys_table.h"
#include "spd_trx.h"
#include "spd_conn.h"
#include "spd_db_conn.h"
#include "spd_ping_table.h"
#include "spd_malloc.h"
#define SPIDER_CAN_BG_SEARCH (1LL << 37)
#define SPIDER_CAN_BG_INSERT (1LL << 38)
#define SPIDER_CAN_BG_UPDATE (1LL << 39)
extern handlerton *spider_hton_ptr;
extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
extern HASH spider_open_tables;
extern pthread_mutex_t spider_lgtm_tblhnd_share_mutex;
/* UTC time zone for timestamp columns */
extern Time_zone *UTC;
void ha_spider::init_fields()
{
DBUG_ENTER("ha_spider::init_fields");
share = NULL;
conns = NULL;
need_mons = NULL;
blob_buff = NULL;
conn_keys = NULL;
spider_thread_id = 0;
trx_conn_adjustment = 0;
search_link_query_id = 0;
partition_handler = NULL;
multi_range_keys = NULL;
mrr_key_buff = NULL;
/* TODO: Are these correct values / should we read from params
already? */
select_column_mode= 0;
init_index_handler= FALSE;
mrr_with_cnt= FALSE;
append_tblnm_alias = NULL;
use_index_merge = FALSE;
is_clone = FALSE;
pushed_pos = NULL;
pt_clone_source_handler = NULL;
pt_clone_last_searcher = NULL;
ft_handler = NULL;
ft_first = NULL;
ft_current = NULL;
ft_count = 0;
ft_init_without_index_init = FALSE;
error_mode = 0;
use_spatial_index = FALSE;
use_fields = FALSE;
dml_inited = FALSE;
use_pre_call = FALSE;
use_pre_action = FALSE;
do_direct_update = FALSE;
prev_index_rnd_init = SPD_NONE;
direct_aggregate_item_first = NULL;
result_link_idx = 0;
result_list.sqls = NULL;
result_list.insert_sqls = NULL;
result_list.update_sqls = NULL;
result_list.tmp_sqls = NULL;
result_list.tmp_tables_created = FALSE;
result_list.bgs_working = FALSE;
result_list.direct_order_limit = FALSE;
result_list.direct_limit_offset = FALSE;
result_list.set_split_read = FALSE;
result_list.insert_dup_update_pushdown = FALSE;
result_list.tmp_pos_row_first = NULL;
result_list.direct_aggregate = FALSE;
result_list.snap_direct_aggregate = FALSE;
result_list.direct_distinct = FALSE;
result_list.casual_read = NULL;
result_list.use_both_key = FALSE;
result_list.in_cmp_ref = FALSE;
result_list.skips= NULL;
result_list.n_aux= 0;
ref_length = sizeof(SPIDER_POSITION);
DBUG_VOID_RETURN;
}
ha_spider::ha_spider(
) : handler(spider_hton_ptr, NULL)
{
DBUG_ENTER("ha_spider::ha_spider");
DBUG_PRINT("info",("spider this=%p", this));
spider_alloc_calc_mem_init(mem_calc, SPD_MID_HA_SPIDER_HA_SPIDER_1);
spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
init_fields();
DBUG_VOID_RETURN;
}
ha_spider::ha_spider(
handlerton *hton,
TABLE_SHARE *table_arg
) : handler(hton, table_arg)
{
DBUG_ENTER("ha_spider::ha_spider");
DBUG_PRINT("info",("spider this=%p", this));
spider_alloc_calc_mem_init(mem_calc, SPD_MID_HA_SPIDER_HA_SPIDER_2);
spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
init_fields();
DBUG_VOID_RETURN;
}
ha_spider::~ha_spider()
{
DBUG_ENTER("ha_spider::~ha_spider");
DBUG_PRINT("info",("spider this=%p", this));
partition_handler = NULL;
if (wide_handler_owner)
{
spider_free(spider_current_trx, wide_handler, MYF(0));
}
wide_handler = NULL;
spider_free_mem_calc(spider_current_trx, mem_calc_id, sizeof(*this));
DBUG_VOID_RETURN;
}
handler *ha_spider::clone(
const char *name,
MEM_ROOT *mem_root
) {
ha_spider *spider;
DBUG_ENTER("ha_spider::clone");
DBUG_PRINT("info",("spider this=%p", this));
if (
!(spider = (ha_spider *)
get_new_handler(table->s, mem_root, spider_hton_ptr)) ||
!(spider->ref = (uchar*) alloc_root(mem_root, ALIGN_SIZE(ref_length) * 2))
)
DBUG_RETURN(NULL);
spider->is_clone = TRUE;
spider->pt_clone_source_handler = this;
if (spider->ha_open(table, name, table->db_stat,
HA_OPEN_IGNORE_IF_LOCKED))
DBUG_RETURN(NULL);
spider->sync_from_clone_source_base(this);
use_index_merge = TRUE;
DBUG_RETURN((handler *) spider);
}
static const char *ha_spider_exts[] = {
NullS
};
const char **ha_spider::bas_ext() const
{
return ha_spider_exts;
}
int ha_spider::open(
const char* name,
int mode,
uint test_if_locked
) {
THD *thd = ha_thd();
int error_num, roop_count;
int init_sql_alloc_size;
ha_spider *spider, *owner;
bool wide_handler_alloc = FALSE;
SPIDER_WIDE_SHARE *wide_share;
uint part_num;
bool partition_handler_alloc = FALSE;
ha_spider **wide_handler_handlers = NULL;
ha_partition *clone_source;
DBUG_ENTER("ha_spider::open");
DBUG_PRINT("info",("spider this=%p", this));
dup_key_idx = (uint) -1;
table->file->get_no_parts("", &part_num);
if (part_num)
{
wide_handler_handlers =
(ha_spider **) ((ha_partition *) table->file)->get_child_handlers();
spider = wide_handler_handlers[0];
owner = wide_handler_handlers[part_num - 1];
clone_source = ((ha_partition *) table->file)->get_clone_source();
if (clone_source)
{
is_clone = TRUE;
}
} else {
spider = this;
owner = this;
clone_source = NULL;
}
if (!spider->wide_handler)
{
uchar *searched_bitmap;
uchar *ft_discard_bitmap;
uchar *position_bitmap;
uchar *idx_read_bitmap;
uchar *idx_write_bitmap;
uchar *rnd_read_bitmap;
uchar *rnd_write_bitmap;
if (!(wide_handler = (SPIDER_WIDE_HANDLER *)
spider_bulk_malloc(spider_current_trx, SPD_MID_HA_SPIDER_OPEN_1, MYF(MY_WME | MY_ZEROFILL),
&wide_handler, sizeof(SPIDER_WIDE_HANDLER),
&searched_bitmap,
(uint) sizeof(uchar) * my_bitmap_buffer_size(table->read_set),
&ft_discard_bitmap,
(uint) sizeof(uchar) * my_bitmap_buffer_size(table->read_set),
&position_bitmap,
(uint) sizeof(uchar) * my_bitmap_buffer_size(table->read_set),
&idx_read_bitmap,
(uint) sizeof(uchar) * my_bitmap_buffer_size(table->read_set),
&idx_write_bitmap,
(uint) sizeof(uchar) * my_bitmap_buffer_size(table->read_set),
&rnd_read_bitmap,
(uint) sizeof(uchar) * my_bitmap_buffer_size(table->read_set),
&rnd_write_bitmap,
(uint) sizeof(uchar) * my_bitmap_buffer_size(table->read_set),
&partition_handler,
(uint) sizeof(SPIDER_PARTITION_HANDLER),
NullS)
)
) {
error_num = HA_ERR_OUT_OF_MEM;
goto error_wide_handler_alloc;
}
spider->wide_handler = wide_handler;
owner->wide_handler = wide_handler;
wide_handler->searched_bitmap = searched_bitmap;
wide_handler->ft_discard_bitmap = ft_discard_bitmap;
wide_handler->position_bitmap = position_bitmap;
wide_handler->idx_read_bitmap = idx_read_bitmap;
wide_handler->idx_write_bitmap = idx_write_bitmap;
wide_handler->rnd_read_bitmap = rnd_read_bitmap;
wide_handler->rnd_write_bitmap = rnd_write_bitmap;
wide_handler->partition_handler = partition_handler;
wide_handler->owner = owner;
if (table_share->tmp_table == NO_TMP_TABLE)
wide_handler->top_share = table->s;
owner->wide_handler_owner = TRUE;
memset(wide_handler->ft_discard_bitmap, 0xFF,
my_bitmap_buffer_size(table->read_set));
memset(wide_handler->searched_bitmap, 0,
my_bitmap_buffer_size(table->read_set));
wide_handler_alloc = TRUE;
if (!share && !spider_get_share(name, table, thd, this, &error_num))
goto error_get_share;
wide_share = share->wide_share;
DBUG_PRINT("info",("spider create partition_handler"));
DBUG_PRINT("info",("spider table=%p", table));
partition_handler->table = table;
partition_handler->no_parts = part_num;
partition_handler->owner = owner;
partition_handler->parallel_search_query_id = 0;
spider->partition_handler = partition_handler;
owner->partition_handler = partition_handler;
partition_handler->handlers = wide_handler_handlers;
partition_handler_alloc = TRUE;
} else {
wide_handler = spider->wide_handler;
partition_handler = wide_handler->partition_handler;
if (!share && !spider_get_share(name, table, thd, this, &error_num))
goto error_get_share;
wide_share= share->wide_share;
}
if (wide_handler_alloc)
{
thr_lock_data_init(&wide_share->lock, &wide_handler->lock, NULL);
}
init_sql_alloc_size =
spider_param_init_sql_alloc_size(thd, share->init_sql_alloc_size);
result_list.table = table;
result_list.first = NULL;
result_list.last = NULL;
result_list.current = NULL;
result_list.record_num = 0;
if (!(result_list.sqls = new spider_string[share->link_count]))
{
error_num = HA_ERR_OUT_OF_MEM;
goto error_init_result_list;
}
if (!(result_list.insert_sqls = new spider_string[share->link_count]))
{
error_num = HA_ERR_OUT_OF_MEM;
goto error_init_result_list;
}
if (!(result_list.update_sqls = new spider_string[share->link_count]))
{
error_num = HA_ERR_OUT_OF_MEM;
goto error_init_result_list;
}
if (!(result_list.tmp_sqls = new spider_string[share->link_count]))
{
error_num = HA_ERR_OUT_OF_MEM;
goto error_init_result_list;
}
for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
{
result_list.sqls[roop_count].init_calc_mem(SPD_MID_HA_SPIDER_OPEN_3);
result_list.insert_sqls[roop_count].init_calc_mem(SPD_MID_HA_SPIDER_OPEN_4);
result_list.update_sqls[roop_count].init_calc_mem(SPD_MID_HA_SPIDER_OPEN_5);
result_list.tmp_sqls[roop_count].init_calc_mem(SPD_MID_HA_SPIDER_OPEN_6);
uint all_link_idx = conn_link_idx[roop_count];
uint dbton_id = share->sql_dbton_ids[all_link_idx];
if (share->dbton_share[dbton_id]->need_change_db_table_name())
{
if (
result_list.sqls[roop_count].real_alloc(init_sql_alloc_size) ||
result_list.insert_sqls[roop_count].real_alloc(init_sql_alloc_size) ||
result_list.update_sqls[roop_count].real_alloc(init_sql_alloc_size) ||
result_list.tmp_sqls[roop_count].real_alloc(init_sql_alloc_size)
) {
error_num = HA_ERR_OUT_OF_MEM;
goto error_init_result_list;
}
}
result_list.sqls[roop_count].set_charset(share->access_charset);
result_list.insert_sqls[roop_count].set_charset(share->access_charset);
result_list.update_sqls[roop_count].set_charset(share->access_charset);
result_list.tmp_sqls[roop_count].set_charset(share->access_charset);
}
DBUG_PRINT("info",("spider blob_fields=%d", table_share->blob_fields));
if (table_share->blob_fields)
{
if (!(blob_buff = new spider_string[table_share->fields]))
{
error_num = HA_ERR_OUT_OF_MEM;
goto error_init_blob_buff;
}
for (roop_count = 0; roop_count < (int) table_share->fields; roop_count++)
{
blob_buff[roop_count].init_calc_mem(SPD_MID_HA_SPIDER_OPEN_7);
blob_buff[roop_count].set_charset(table->field[roop_count]->charset());
}
}
if (is_clone)
{
if (part_num)
{
for (roop_count = 0; roop_count < (int) part_num; roop_count++)
{
if (partition_handler->handlers[roop_count]->share == share)
{
pt_clone_source_handler =
partition_handler->handlers[roop_count];
break;
}
}
}
wide_handler->external_lock_type =
pt_clone_source_handler->wide_handler->external_lock_type;
if (wide_handler_alloc)
{
wide_handler->lock_mode =
pt_clone_source_handler->wide_handler->lock_mode;
if (!partition_handler->clone_bitmap_init)
{
pt_clone_source_handler->set_select_column_mode();
partition_handler->clone_bitmap_init = TRUE;
}
set_clone_searched_bitmap();
wide_handler->position_bitmap_init = FALSE;
wide_handler->sql_command =
pt_clone_source_handler->wide_handler->sql_command;
}
} else
wide_handler->semi_table_lock =
spider_param_semi_table_lock(thd, share->semi_table_lock);
if (reset())
{
error_num = HA_ERR_OUT_OF_MEM;
goto error_reset;
}
DBUG_RETURN(0);
error_reset:
delete [] blob_buff;
blob_buff = NULL;
error_init_blob_buff:
error_init_result_list:
if (partition_handler_alloc)
{
wide_share = share->wide_share;
spider->partition_handler = NULL;
owner->partition_handler = NULL;
}
partition_handler = NULL;
spider_free_share(share);
share = NULL;
if (conn_keys)
{
spider_free(spider_current_trx, conn_keys, MYF(0));
conn_keys = NULL;
}
error_get_share:
if (wide_handler_alloc)
{
spider_free(spider_current_trx, wide_handler, MYF(0));
if (wide_handler_handlers)
{
wide_handler_handlers[0]->wide_handler = NULL;
}
spider->wide_handler = NULL;
owner->wide_handler = NULL;
owner->wide_handler_owner = FALSE;
}
if (!wide_handler_owner)
wide_handler = NULL;
error_wide_handler_alloc:
DBUG_RETURN(error_num);
}
/*
Given a SPIDER_SHARE that will be freed, update all SPIDER_TRX_HAs
of spider_current_trx to point to a NULL share, which will cause the
removal of the SPIDER_TRX_HA in spider_check_trx_ha().
*/
static void spider_update_current_trx_ha_with_freed_share(SPIDER_SHARE *share)
{
SPIDER_TRX *trx= spider_current_trx;
if (trx)
{
for (uint i = 0; i < trx->trx_ha_hash.records; i++)
{
SPIDER_TRX_HA *trx_ha = (SPIDER_TRX_HA *) my_hash_element(&trx->trx_ha_hash, i);
if (trx_ha->share == share)
trx_ha->share= NULL;
}
}
}
/*
Given an ha_spider that is being closed, reset the queued ping info
of SPIDER_CONN of the current spider trx that has the given
ha_spider as the queued_ping_spider.
*/
static void spider_reset_conn_queued_ping(ha_spider *spider)
{
SPIDER_TRX *trx= spider_current_trx;
if (trx)
{
for (uint i= 0; i < trx->trx_conn_hash.records; i++)
{
SPIDER_CONN *conn= (SPIDER_CONN *) my_hash_element(&trx->trx_conn_hash, i);
if (conn->queued_ping_spider == spider)
{
conn->queued_ping= FALSE;
conn->queued_ping_spider= NULL;
}
}
}
}
int ha_spider::close()
{
int error_num= 0, roop_count;
THD *thd = ha_thd();
backup_error_status();
DBUG_ENTER("ha_spider::close");
DBUG_PRINT("info",("spider this=%p", this));
if (multi_range_keys)
{
DBUG_PRINT("info",("spider free multi_range_keys=%p", multi_range_keys));
spider_free(spider_current_trx, multi_range_keys, MYF(0));
multi_range_keys = NULL;
}
if (mrr_key_buff)
{
delete [] mrr_key_buff;
mrr_key_buff = NULL;
}
while (direct_aggregate_item_first)
{
direct_aggregate_item_current = direct_aggregate_item_first->next;
if (direct_aggregate_item_first->item)
{
delete direct_aggregate_item_first->item;
}
spider_free(spider_current_trx, direct_aggregate_item_first, MYF(0));
direct_aggregate_item_first = direct_aggregate_item_current;
}
for (roop_count = share->use_dbton_count - 1; roop_count >= 0; roop_count--)
{
uint dbton_id = share->use_dbton_ids[roop_count];
if (dbton_handler[dbton_id])
{
delete dbton_handler[dbton_id];
dbton_handler[dbton_id] = NULL;
}
}
if (!thd || !thd_get_ha_data(thd, spider_hton_ptr))
{
for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
conns[roop_count] = NULL;
}
if (ft_first)
{
st_spider_ft_info *tmp_ft_info;
do {
tmp_ft_info = ft_first->next;
spider_free(spider_current_trx, ft_first, MYF(0));
ft_first = tmp_ft_info;
} while (ft_first);
}
spider_db_free_result(this, TRUE);
if (conn_keys)
{
spider_free(spider_current_trx, conn_keys, MYF(0));
conn_keys = NULL;
}
partition_handler = NULL;
if (wide_handler_owner)
{
spider_free(spider_current_trx, wide_handler, MYF(0));
wide_handler_owner = FALSE;
}
wide_handler = NULL;
if (blob_buff)
{
delete [] blob_buff;
blob_buff = NULL;
}
if (result_list.sqls)
{
delete [] result_list.sqls;
result_list.sqls = NULL;
}
if (result_list.insert_sqls)
{
delete [] result_list.insert_sqls;
result_list.insert_sqls = NULL;
}
if (result_list.update_sqls)
{
delete [] result_list.update_sqls;
result_list.update_sqls = NULL;
}
if (result_list.tmp_sqls)
{
delete [] result_list.tmp_sqls;
result_list.tmp_sqls = NULL;
}
spider_reset_conn_queued_ping(this);
spider_update_current_trx_ha_with_freed_share(share);
spider_free_share(share);
is_clone = FALSE;
pt_clone_source_handler = NULL;
share = NULL;
conns = NULL;
DBUG_RETURN(error_num);
}
int ha_spider::check_access_kind_for_connection(
THD *thd,
bool write_request
) {
int error_num, roop_count;
DBUG_ENTER("ha_spider::check_access_kind_for_connection");
DBUG_PRINT("info",("spider this=%p", this));
if ((error_num= spider_check_trx_and_get_conn(thd, this)))
{
DBUG_RETURN(error_num);
}
DBUG_PRINT("info",("spider wide_handler->semi_trx_isolation_chk = %s",
wide_handler->semi_trx_isolation_chk ? "TRUE" : "FALSE"));
if (wide_handler->semi_trx_isolation_chk)
{
SPIDER_SET_CONNS_PARAM(semi_trx_isolation_chk, TRUE, conns,
share->link_statuses, conn_link_idx, (int) share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
}
DBUG_PRINT("info",("spider wide_handler->semi_trx_chk = %s",
wide_handler->semi_trx_chk ? "TRUE" : "FALSE"));
if (wide_handler->semi_trx_chk)
{
SPIDER_SET_CONNS_PARAM(semi_trx_chk, TRUE, conns, share->link_statuses,
conn_link_idx, (int) share->link_count, SPIDER_LINK_STATUS_RECOVERY);
} else {
SPIDER_SET_CONNS_PARAM(semi_trx_chk, FALSE, conns, share->link_statuses,
conn_link_idx, (int) share->link_count, SPIDER_LINK_STATUS_RECOVERY);
}
DBUG_RETURN(0);
}
void ha_spider::check_access_kind(
THD *thd
) {
DBUG_ENTER("ha_spider::check_access_kind");
DBUG_PRINT("info",("spider this=%p", this));
wide_handler->sql_command = thd_sql_command(thd);
DBUG_PRINT("info",("spider sql_command=%u", wide_handler->sql_command));
DBUG_PRINT("info",("spider thd->query_id=%lld", thd->query_id));
wide_handler->update_request = FALSE;
DBUG_VOID_RETURN;
}
THR_LOCK_DATA **ha_spider::store_lock(
THD *thd,
THR_LOCK_DATA **to,
enum thr_lock_type lock_type
) {
DBUG_ENTER("ha_spider::store_lock");
DBUG_PRINT("info",("spider this=%p", this));
if (
wide_handler->stage == SPD_HND_STAGE_STORE_LOCK &&
wide_handler->stage_executor != this)
{
DBUG_RETURN(to);
}
wide_handler->stage = SPD_HND_STAGE_STORE_LOCK;
wide_handler->stage_executor = this;
wide_handler->lock_table_type = 0;
if (lock_type == TL_IGNORE)
{
*to++ = &wide_handler->lock;
DBUG_RETURN(to);
}
check_access_kind(thd);
DBUG_PRINT("info",("spider sql_command=%u", wide_handler->sql_command));
DBUG_PRINT("info",("spider lock_type=%d", lock_type));
DBUG_PRINT("info",("spider thd->query_id=%lld", thd->query_id));
wide_handler->lock_type = lock_type;
if (
wide_handler->sql_command != SQLCOM_DROP_TABLE &&
wide_handler->sql_command != SQLCOM_ALTER_TABLE
) {
wide_handler->semi_trx_chk = FALSE;
}
switch (wide_handler->sql_command)
{
case SQLCOM_SELECT:
case SQLCOM_HA_READ:
if (lock_type == TL_READ_WITH_SHARED_LOCKS)
wide_handler->lock_mode = 1;
else if (lock_type <= TL_READ_NO_INSERT)
{
wide_handler->lock_mode = 0;
wide_handler->semi_trx_isolation_chk = TRUE;
} else
wide_handler->lock_mode = -1;
wide_handler->semi_trx_chk = TRUE;
break;
case SQLCOM_UPDATE:
case SQLCOM_UPDATE_MULTI:
case SQLCOM_CREATE_TABLE:
case SQLCOM_INSERT:
case SQLCOM_INSERT_SELECT:
case SQLCOM_DELETE:
case SQLCOM_LOAD:
case SQLCOM_REPLACE:
case SQLCOM_REPLACE_SELECT:
case SQLCOM_DELETE_MULTI:
if (lock_type >= TL_READ && lock_type <= TL_READ_NO_INSERT)
{
wide_handler->lock_mode = -2;
wide_handler->semi_trx_isolation_chk = TRUE;
} else
wide_handler->lock_mode = -1;
wide_handler->semi_trx_chk = TRUE;
break;
default:
wide_handler->lock_mode = -1;
}
switch (lock_type)
{
case TL_READ_HIGH_PRIORITY:
wide_handler->high_priority = TRUE;
break;
case TL_WRITE_LOW_PRIORITY:
wide_handler->low_priority = TRUE;
break;
default:
break;
}
if (wide_handler->lock_type != TL_IGNORE &&
wide_handler->lock.type == TL_UNLOCK)
{
if (
wide_handler->sql_command == SQLCOM_DROP_TABLE ||
wide_handler->sql_command == SQLCOM_ALTER_TABLE ||
wide_handler->sql_command == SQLCOM_SHOW_CREATE ||
wide_handler->sql_command == SQLCOM_SHOW_FIELDS
) {
if (
lock_type == TL_READ_NO_INSERT &&
!thd->in_lock_tables
)
lock_type = TL_READ;
if (
lock_type >= TL_WRITE_CONCURRENT_INSERT && lock_type <= TL_WRITE &&
!thd->in_lock_tables && !thd_tablespace_op(thd)
)
lock_type = TL_WRITE_ALLOW_WRITE;
} else if (
wide_handler->sql_command == SQLCOM_LOCK_TABLES ||
(spider_param_lock_exchange(thd) == 1 && wide_handler->semi_table_lock))
{
DBUG_PRINT("info",("spider lock exchange route"));
DBUG_PRINT("info",("spider lock_type=%u", wide_handler->lock_type));
if (
(
wide_handler->lock_type == TL_READ ||
wide_handler->lock_type == TL_READ_NO_INSERT ||
wide_handler->lock_type == TL_WRITE_LOW_PRIORITY ||
wide_handler->lock_type == TL_WRITE
) &&
!spider_param_local_lock_table(thd)
) {
wide_handler->lock_table_type = 1;
if (partition_handler && partition_handler->handlers)
{
uint roop_count;
for (roop_count = 0; roop_count < partition_handler->no_parts;
++roop_count)
{
if (unlikely((store_error_num =
partition_handler->handlers[roop_count]->
append_lock_tables_list())))
{
break;
}
}
} else {
store_error_num = append_lock_tables_list();
}
}
} else {
DBUG_PRINT("info",("spider default lock route"));
DBUG_PRINT("info",("spider lock_type=%u", wide_handler->lock_type));
if (
wide_handler->lock_type == TL_READ ||
wide_handler->lock_type == TL_READ_NO_INSERT ||
wide_handler->lock_type == TL_WRITE_LOW_PRIORITY ||
wide_handler->lock_type == TL_WRITE
) {
if (
!spider_param_local_lock_table(thd) &&
spider_param_semi_table_lock(thd, wide_handler->semi_table_lock)
) {
wide_handler->lock_table_type = 2;
if (partition_handler && partition_handler->handlers)
{
uint roop_count;
for (roop_count = 0;
roop_count < partition_handler->no_parts;
++roop_count)
{
if (unlikely((store_error_num =
partition_handler->handlers[roop_count]->
append_lock_tables_list())))
{
break;
}
}
} else {
store_error_num = append_lock_tables_list();
}
}
}
if (
lock_type == TL_READ_NO_INSERT &&
!thd->in_lock_tables
)
lock_type = TL_READ;
if (
lock_type >= TL_WRITE_CONCURRENT_INSERT && lock_type <= TL_WRITE &&
!thd->in_lock_tables && !thd_tablespace_op(thd)
)
lock_type = TL_WRITE_ALLOW_WRITE;
}
wide_handler->lock.type = lock_type;
}
*to++ = &wide_handler->lock;
DBUG_RETURN(to);
}
int ha_spider::external_lock(
THD *thd,
int lock_type
) {
int error_num = 0;
SPIDER_TRX *trx;
backup_error_status();
DBUG_ENTER("ha_spider::external_lock");
/* Beginning of wide_handler setup */
if (wide_handler->stage == SPD_HND_STAGE_EXTERNAL_LOCK)
{
/* Only the stage executor deals with table locks. */
if (wide_handler->stage_executor != this)
{
DBUG_RETURN(0);
}
}
else
{
/* Update the stage executor when the stage changes. */
wide_handler->stage= SPD_HND_STAGE_EXTERNAL_LOCK;
wide_handler->stage_executor= this;
}
info_auto_called = FALSE;
wide_handler->external_lock_type= lock_type;
wide_handler->sql_command = thd_sql_command(thd);
trx= spider_get_trx(thd, TRUE, &error_num);
if (error_num)
{
DBUG_RETURN(error_num);
}
wide_handler->trx= trx;
/* End of wide_handler setup */
if (lock_type == F_UNLCK)
{
if (!trx->locked_connections)
{
DBUG_RETURN(0); /* No remote table actually locked by Spider */
}
}
if (store_error_num)
{
DBUG_RETURN(store_error_num);
}
/* We treat BEGIN as if UNLOCK TABLE. */
if (wide_handler->sql_command == SQLCOM_BEGIN)
{
wide_handler->sql_command = SQLCOM_UNLOCK_TABLES;
}
const uint sql_command= wide_handler->sql_command;
DBUG_ASSERT(sql_command != SQLCOM_RENAME_TABLE &&
sql_command != SQLCOM_DROP_DB);
if (sql_command == SQLCOM_DROP_TABLE || sql_command == SQLCOM_ALTER_TABLE)
{
if (trx->locked_connections)
{
my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
DBUG_RETURN(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM);
}
DBUG_RETURN(0);
}
if (lock_type == F_UNLCK)
{
wide_handler->sql_command = SQLCOM_UNLOCK_TABLES;
if (!trx->locked_connections)
{
DBUG_RETURN(0); /* No remote table actually locked by Spider */
}
}
else
{
if (unlikely((error_num= spider_internal_start_trx(this))))
{
DBUG_RETURN(error_num);
}
if (sql_command != SQLCOM_SELECT && sql_command != SQLCOM_HA_READ)
{
trx->updated_in_this_trx= TRUE;
}
if (!wide_handler->lock_table_type)
{
DBUG_RETURN(0); /* No need to actually lock remote tables. */
}
}
if ((error_num= spider_check_trx_and_get_conn(thd, this)))
DBUG_RETURN(error_num);
if (!partition_handler || !partition_handler->handlers)
{
DBUG_RETURN(lock_tables()); /* Non-partitioned table */
}
for (uint i= 0; i < partition_handler->no_parts; ++i)
{
if (unlikely((error_num= partition_handler->handlers[i]->lock_tables())))
{
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::start_stmt(
THD *thd,
thr_lock_type lock_type
) {
DBUG_ENTER("ha_spider::start_stmt");
if (
wide_handler->stage == SPD_HND_STAGE_START_STMT &&
wide_handler->stage_executor != this)
{
DBUG_RETURN(0);
}
wide_handler->stage = SPD_HND_STAGE_START_STMT;
wide_handler->stage_executor = this;
DBUG_RETURN(0);
}
int ha_spider::reset()
{
int error_num = 0, error_num2, roop_count;
THD *thd = ha_thd();
SPIDER_TRX *tmp_trx, *trx_bak;
SPIDER_CONDITION *tmp_cond;
backup_error_status();
DBUG_ENTER("ha_spider::reset");
DBUG_PRINT("info",("spider this=%p", this));
direct_aggregate_item_current = direct_aggregate_item_first;
while (direct_aggregate_item_current)
{
if (direct_aggregate_item_current->item)
{
delete direct_aggregate_item_current->item;
direct_aggregate_item_current->item = NULL;
if (direct_aggregate_item_current->init_mem_root)
{
free_root(&direct_aggregate_item_current->mem_root, MYF(0));
direct_aggregate_item_current->init_mem_root = FALSE;
}
}
direct_aggregate_item_current = direct_aggregate_item_current->next;
}
result_list.direct_aggregate = FALSE;
result_list.snap_direct_aggregate = FALSE;
result_list.direct_distinct = FALSE;
store_error_num = 0;
if (wide_handler)
{
wide_handler->sql_command = SQLCOM_END;
wide_handler->between_flg = FALSE;
wide_handler->idx_bitmap_is_set = FALSE;
wide_handler->rnd_bitmap_is_set = FALSE;
wide_handler->quick_mode = FALSE;
wide_handler->keyread = FALSE;
wide_handler->ignore_dup_key = FALSE;
wide_handler->write_can_replace = FALSE;
wide_handler->insert_with_update = FALSE;
wide_handler->low_priority = FALSE;
wide_handler->high_priority = FALSE;
wide_handler->lock_table_type = 0;
wide_handler->semi_trx_isolation_chk = FALSE;
wide_handler->semi_trx_chk = FALSE;
if (!is_clone)
{
memset(wide_handler->ft_discard_bitmap, 0xFF,
my_bitmap_buffer_size(table->read_set));
memset(wide_handler->searched_bitmap, 0,
my_bitmap_buffer_size(table->read_set));
}
while (wide_handler->condition)
{
tmp_cond = wide_handler->condition->next;
spider_free(spider_current_trx, wide_handler->condition, MYF(0));
wide_handler->condition = tmp_cond;
}
wide_handler->cond_check = FALSE;
wide_handler->direct_update_fields = NULL;
#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
wide_handler->info_limit = 9223372036854775807LL;
#endif
wide_handler->stage = SPD_HND_STAGE_NONE;
wide_handler->stage_executor = NULL;
}
if (!(tmp_trx = spider_get_trx(thd, TRUE, &error_num2)))
{
DBUG_PRINT("info",("spider get trx error"));
if (check_error_mode(error_num2))
error_num = error_num2;
}
if (share)
{
trx_bak = wide_handler->trx;
wide_handler->trx = tmp_trx;
if ((error_num2 = spider_db_free_result(this, FALSE)))
error_num = error_num2;
wide_handler->trx = trx_bak;
memset(need_mons, 0, sizeof(int) * share->link_count);
memset(result_list.casual_read, 0, sizeof(int) * share->link_count);
rm_bulk_tmp_table();
for (roop_count = share->link_count - 1; roop_count >= 0; roop_count--)
{
result_list.update_sqls[roop_count].length(0);
}
result_list.bulk_update_mode = 0;
result_list.bulk_update_size = 0;
result_list.bulk_update_start = SPD_BU_NOT_START;
for (roop_count = 0; roop_count < (int) share->use_dbton_count;
roop_count++)
{
uint dbton_id = share->use_dbton_ids[roop_count];
if ((error_num2 = dbton_handler[dbton_id]->reset()))
{
if (check_error_mode(error_num2))
error_num = error_num2;
}
}
}
dml_inited = FALSE;
use_pre_call = FALSE;
use_pre_action = FALSE;
pre_bitmap_checked = FALSE;
bulk_insert = FALSE;
partition_handler->clone_bitmap_init = FALSE;
result_list.tmp_table_join = FALSE;
result_list.use_union = FALSE;
result_list.use_both_key = FALSE;
pt_clone_last_searcher = NULL;
use_index_merge = FALSE;
init_rnd_handler = FALSE;
if (multi_range_keys)
{
DBUG_PRINT("info",("spider free multi_range_keys=%p", multi_range_keys));
spider_free(spider_current_trx, multi_range_keys, MYF(0));
multi_range_keys = NULL;
}
multi_range_num = 0;
ft_handler = NULL;
ft_current = NULL;
ft_count = 0;
ft_init_without_index_init = FALSE;
do_direct_update = FALSE;
prev_index_rnd_init = SPD_NONE;
result_list.direct_order_limit = FALSE;
result_list.direct_limit_offset = FALSE;
result_list.set_split_read = FALSE;
result_list.insert_dup_update_pushdown = FALSE;
use_spatial_index = FALSE;
use_fields = FALSE;
error_mode = 0;
DBUG_RETURN(error_num);
}
int ha_spider::extra(
enum ha_extra_function operation
) {
DBUG_ENTER("ha_spider::extra");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider operation=%d", (int) operation));
if (
wide_handler->stage == SPD_HND_STAGE_EXTRA &&
wide_handler->stage_executor != this)
{
DBUG_RETURN(0);
}
wide_handler->stage = SPD_HND_STAGE_EXTRA;
wide_handler->stage_executor = this;
switch (operation)
{
case HA_EXTRA_QUICK:
wide_handler->quick_mode = TRUE;
break;
case HA_EXTRA_KEYREAD:
if (!is_clone)
{
wide_handler->keyread = TRUE;
if (wide_handler->update_request)
{
if (check_partitioned())
wide_handler->keyread = FALSE;
}
}
break;
case HA_EXTRA_NO_KEYREAD:
wide_handler->keyread = FALSE;
break;
case HA_EXTRA_IGNORE_DUP_KEY:
wide_handler->ignore_dup_key = TRUE;
break;
case HA_EXTRA_NO_IGNORE_DUP_KEY:
wide_handler->ignore_dup_key = FALSE;
break;
case HA_EXTRA_WRITE_CAN_REPLACE:
wide_handler->write_can_replace = TRUE;
break;
case HA_EXTRA_WRITE_CANNOT_REPLACE:
wide_handler->write_can_replace = FALSE;
break;
case HA_EXTRA_INSERT_WITH_UPDATE:
wide_handler->insert_with_update = TRUE;
break;
case HA_EXTRA_STARTING_ORDERED_INDEX_SCAN:
DBUG_PRINT("info",("spider HA_EXTRA_STARTING_ORDERED_INDEX_SCAN"));
if (table_share->primary_key != MAX_KEY)
{
DBUG_PRINT("info",("spider need primary key columns"));
KEY *key_info = &table->key_info[table->s->primary_key];
KEY_PART_INFO *key_part;
uint part_num;
for (
key_part = key_info->key_part, part_num = 0;
part_num < spider_user_defined_key_parts(key_info);
key_part++, part_num++
) {
spider_set_bit(wide_handler->searched_bitmap,
key_part->field->field_index);
}
} else {
DBUG_PRINT("info",("spider need all columns"));
Field **field;
for (
field = table->field;
*field;
field++
) {
spider_set_bit(wide_handler->searched_bitmap, (*field)->field_index);
}
}
break;
default:
break;
}
DBUG_RETURN(0);
}
int ha_spider::index_init(
uint idx,
bool sorted
) {
int error_num;
DBUG_ENTER("ha_spider::index_init");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider idx=%u", idx));
if (!dml_inited)
{
if (unlikely((error_num = dml_init())))
{
DBUG_RETURN(error_num);
}
}
pushed_pos = NULL;
active_index = idx;
result_list.sorted = sorted;
spider_set_result_list_param(this);
mrr_with_cnt = FALSE;
init_index_handler = FALSE;
use_spatial_index = FALSE;
if (pre_bitmap_checked)
pre_bitmap_checked = FALSE;
else {
if (wide_handler->external_lock_type == F_WRLCK)
{
pk_update = FALSE;
/*
check_and_start_bulk_update(SPD_BU_START_BY_INDEX_OR_RND_INIT);
*/
if (
wide_handler->update_request &&
share->have_recovery_link &&
(pk_update = spider_check_pk_update(table))
) {
bitmap_set_all(table->read_set);
if (is_clone)
memset(wide_handler->searched_bitmap, 0xFF,
my_bitmap_buffer_size(table->read_set));
}
}
if (!is_clone)
set_select_column_mode();
}
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
result_list.check_direct_order_limit = FALSE;
prev_index_rnd_init = SPD_INDEX;
DBUG_RETURN(0);
}
int ha_spider::index_end()
{
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::index_end");
DBUG_PRINT("info",("spider this=%p", this));
active_index = MAX_KEY;
if ((error_num = drop_tmp_tables()))
DBUG_RETURN(check_error_mode(error_num));
result_list.use_union = FALSE;
DBUG_RETURN(0);
}
static int spider_maybe_ping(ha_spider *spider, int link_idx, int error_num)
{
if (
spider->share->monitoring_kind[link_idx] &&
spider->need_mons[link_idx]
) {
error_num = spider_ping_table_mon_from_table(
spider->wide_handler->trx,
spider->wide_handler->trx->thd,
spider->share,
link_idx,
(uint32) spider->share->monitoring_sid[link_idx],
spider->share->table_name,
spider->share->table_name_length,
spider->conn_link_idx[link_idx],
NULL,
0,
spider->share->monitoring_kind[link_idx],
spider->share->monitoring_limit[link_idx],
spider->share->monitoring_flag[link_idx],
TRUE
);
}
return spider->check_error_mode_eof(error_num);
}
static int spider_maybe_ping_1(ha_spider *spider,
int link_idx, int error_num)
{
if (
spider->share->monitoring_kind[link_idx] &&
spider->need_mons[link_idx]
) {
error_num = spider_ping_table_mon_from_table(
spider->wide_handler->trx,
spider->wide_handler->trx->thd,
spider->share,
link_idx,
(uint32) spider->share->monitoring_sid[link_idx],
spider->share->table_name,
spider->share->table_name_length,
spider->conn_link_idx[link_idx],
NULL,
0,
spider->share->monitoring_kind[link_idx],
spider->share->monitoring_limit[link_idx],
spider->share->monitoring_flag[link_idx],
TRUE
);
}
return error_num;
}
static void spider_prep_loop(ha_spider *spider, int *roop_start, int *roop_end, int *link_ok)
{
int lock_mode = spider_conn_lock_mode(spider);
if (lock_mode)
{
/* "for update" or "lock in share mode" */
*link_ok = spider_conn_link_idx_next(spider->share->link_statuses,
spider->conn_link_idx, -1, spider->share->link_count,
SPIDER_LINK_STATUS_OK);
*roop_start = spider_conn_link_idx_next(spider->share->link_statuses,
spider->conn_link_idx, -1, spider->share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
*roop_end = spider->share->link_count;
} else {
*link_ok = spider->search_link_idx;
*roop_start = spider->search_link_idx;
*roop_end = spider->search_link_idx + 1;
}
}
/* Returns true if the caller should return *error_num */
static bool spider_start_bg(ha_spider* spider, int roop_count, int roop_start, int link_ok, int *error_num)
{
if ((*error_num = spider_check_and_init_casual_read(
spider->wide_handler->trx->thd, spider,
roop_count)))
return true;
if ((*error_num = spider_bg_conn_search(spider, roop_count, roop_start,
TRUE, FALSE, (roop_count != link_ok))))
{
if (
*error_num != HA_ERR_END_OF_FILE
) {
*error_num= spider_maybe_ping(spider, roop_count, *error_num);
return true;
}
*error_num= spider->check_error_mode_eof(*error_num);
return true;
}
return false;
}
/* Updates error_num. Returning true if the caller should return. */
static bool spider_send_query(ha_spider *spider, TABLE *table, int link_idx, int link_ok, int *error_num)
{
ulong sql_type;
SPIDER_CONN *conn = spider->conns[link_idx];
sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
if ((*error_num = dbton_hdl->set_sql_for_exec(sql_type, link_idx)))
{
return true;
}
DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
spider_lock_before_query(conn, &spider->need_mons[link_idx]);
if ((*error_num = spider_db_set_names(spider, conn,
link_idx)))
{
spider_unlock_after_query(conn, 0);
*error_num= spider_maybe_ping(spider, link_idx, *error_num);
return true;
}
spider_conn_set_timeout_from_share(conn, link_idx,
spider->wide_handler->trx->thd, spider->share);
if (dbton_hdl->execute_sql(
sql_type,
conn,
spider->result_list.quick_mode,
&spider->need_mons[link_idx])
) {
*error_num= spider_unlock_after_query_1(conn);
*error_num= (spider_maybe_ping(spider, link_idx, *error_num));
return true;
}
spider->connection_ids[link_idx] = conn->connection_id;
if (link_idx == link_ok)
{
if ((*error_num = spider_unlock_after_query_2(conn, spider, link_idx, table)))
{
if (
*error_num != HA_ERR_END_OF_FILE
) {
*error_num= spider_maybe_ping(spider, link_idx, *error_num);
return true;
}
*error_num= spider->check_error_mode_eof(*error_num);
return true;
}
spider->result_link_idx = link_ok;
} else {
spider_db_discard_result(spider, link_idx, conn);
spider_unlock_after_query(conn, 0);
}
return false;
}
int ha_spider::index_read_map_internal(
uchar *buf,
const uchar *key,
key_part_map keypart_map,
enum ha_rkey_function find_flag
) {
int error_num;
key_range start_key;
backup_error_status();
DBUG_ENTER("ha_spider::index_read_map_internal");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
do_direct_update = FALSE;
if (
find_flag >= HA_READ_MBR_CONTAIN &&
find_flag <= HA_READ_MBR_EQUAL
)
use_spatial_index = TRUE;
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
spider_db_free_one_result_for_start_next(this);
spider_set_result_list_param(this);
check_direct_order_limit();
start_key.key = key;
start_key.keypart_map = keypart_map;
start_key.flag = find_flag;
/* Query construction */
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
check_select_column(FALSE);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (wide_handler->keyread)
result_list.keyread = TRUE;
else
result_list.keyread = FALSE;
if (
(error_num = spider_db_append_select(this)) ||
(error_num = spider_db_append_select_columns(this))
)
DBUG_RETURN(error_num);
if (
share->key_hint &&
(error_num = append_hint_after_table_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
result_list.desc_flg = FALSE;
result_list.sorted = TRUE;
result_list.key_info = &table->key_info[active_index];
check_distinct_key_query();
result_list.limit_num =
result_list.internal_limit >= result_list.split_read ?
result_list.split_read : result_list.internal_limit;
DBUG_PRINT("info",("spider result_list.internal_limit=%lld",
result_list.internal_limit));
DBUG_PRINT("info",("spider result_list.split_read=%lld",
result_list.split_read));
DBUG_PRINT("info",("spider result_list.limit_num=%lld",
result_list.limit_num));
if (
(error_num = spider_db_append_key_where(
&start_key, NULL, this))
)
DBUG_RETURN(error_num);
DBUG_PRINT("info",("spider result_list.internal_limit=%lld",
result_list.internal_limit));
DBUG_PRINT("info",("spider result_list.split_read=%lld",
result_list.split_read));
DBUG_PRINT("info",("spider result_list.limit_num=%lld",
result_list.limit_num));
{
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if (spider_start_bg(this, roop_count, roop_start, link_ok, &error_num))
DBUG_RETURN(error_num);
} else {
if (spider_send_query(this, table, roop_count, link_ok, &error_num))
DBUG_RETURN(error_num);
}
}
if (buf && (error_num = spider_db_fetch(buf, this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
int ha_spider::pre_index_read_map(
const uchar *key,
key_part_map keypart_map,
enum ha_rkey_function find_flag,
bool use_parallel
) {
DBUG_ENTER("ha_spider::pre_index_read_map");
DBUG_PRINT("info",("spider this=%p", this));
check_pre_call(use_parallel);
if (use_pre_call)
{
store_error_num =
index_read_map_internal(NULL, key, keypart_map, find_flag);
DBUG_RETURN(store_error_num);
}
DBUG_RETURN(0);
}
int ha_spider::index_read_map(
uchar *buf,
const uchar *key,
key_part_map keypart_map,
enum ha_rkey_function find_flag
) {
int error_num;
DBUG_ENTER("ha_spider::index_read_map");
DBUG_PRINT("info",("spider this=%p", this));
if (use_pre_call)
{
if (store_error_num)
{
if (store_error_num == HA_ERR_END_OF_FILE)
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(store_error_num);
}
if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
DBUG_RETURN(error_num);
use_pre_call = FALSE;
if (
result_list.sorted &&
result_list.desc_flg
) {
DBUG_RETURN(index_prev(buf));
}
DBUG_RETURN(index_next(buf));
}
DBUG_RETURN(index_read_map_internal(buf, key, keypart_map, find_flag));
}
int ha_spider::index_read_last_map_internal(
uchar *buf,
const uchar *key,
key_part_map keypart_map
) {
int error_num;
key_range start_key;
backup_error_status();
DBUG_ENTER("ha_spider::index_read_last_map_internal");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
do_direct_update = FALSE;
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
/*
spider_db_free_one_result_for_start_next(this);
*/
if (
result_list.current
&&
(error_num = spider_db_free_result(this, FALSE))
)
DBUG_RETURN(error_num);
check_direct_order_limit();
start_key.key = key;
start_key.keypart_map = keypart_map;
start_key.flag = HA_READ_KEY_EXACT;
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
check_select_column(FALSE);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (wide_handler->keyread)
result_list.keyread = TRUE;
else
result_list.keyread = FALSE;
if (
(error_num = spider_db_append_select(this)) ||
(error_num = spider_db_append_select_columns(this))
)
DBUG_RETURN(error_num);
if (
share->key_hint &&
(error_num = append_hint_after_table_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
result_list.desc_flg = TRUE;
result_list.sorted = TRUE;
result_list.key_info = &table->key_info[active_index];
check_distinct_key_query();
result_list.limit_num =
result_list.internal_limit >= result_list.split_read ?
result_list.split_read : result_list.internal_limit;
if (
(error_num = spider_db_append_key_where(
&start_key, NULL, this))
)
DBUG_RETURN(error_num);
{
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if (spider_start_bg(this, roop_count, roop_start, link_ok, &error_num))
DBUG_RETURN(error_num);
} else {
if (spider_send_query(this, table, roop_count, link_ok, &error_num))
DBUG_RETURN(error_num);
}
}
if (buf && (error_num = spider_db_fetch(buf, this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
int ha_spider::pre_index_read_last_map(
const uchar *key,
key_part_map keypart_map,
bool use_parallel
) {
DBUG_ENTER("ha_spider::pre_index_read_last_map");
DBUG_PRINT("info",("spider this=%p", this));
check_pre_call(use_parallel);
if (use_pre_call)
{
store_error_num =
index_read_last_map_internal(NULL, key, keypart_map);
DBUG_RETURN(store_error_num);
}
DBUG_RETURN(0);
}
int ha_spider::index_read_last_map(
uchar *buf,
const uchar *key,
key_part_map keypart_map
) {
int error_num;
DBUG_ENTER("ha_spider::index_read_last_map");
DBUG_PRINT("info",("spider this=%p", this));
if (use_pre_call)
{
if (store_error_num)
{
if (store_error_num == HA_ERR_END_OF_FILE)
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(store_error_num);
}
if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
DBUG_RETURN(error_num);
use_pre_call = FALSE;
DBUG_RETURN(index_prev(buf));
}
DBUG_RETURN(index_read_last_map_internal(buf, key, keypart_map));
}
int ha_spider::index_next(
uchar *buf
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::index_next");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
if (
result_list.sorted &&
result_list.desc_flg
) {
if ((error_num = spider_db_seek_prev(buf, this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
if ((error_num = spider_db_seek_next(buf, this, search_link_idx, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
int ha_spider::index_prev(
uchar *buf
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::index_prev");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
if (
result_list.sorted &&
result_list.desc_flg
) {
if ((error_num = spider_db_seek_next(buf, this, search_link_idx, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
if ((error_num = spider_db_seek_prev(buf, this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
int ha_spider::index_first_internal(
uchar *buf
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::index_first_internal");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
do_direct_update = FALSE;
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
{
/*
spider_db_free_one_result_for_start_next(this);
*/
if ((error_num = spider_db_free_result(this, FALSE)))
DBUG_RETURN(error_num);
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
check_direct_order_limit();
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
check_select_column(FALSE);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (wide_handler->keyread)
result_list.keyread = TRUE;
else
result_list.keyread = FALSE;
if (
(error_num = spider_db_append_select(this)) ||
(error_num = spider_db_append_select_columns(this))
)
DBUG_RETURN(error_num);
if (
share->key_hint &&
(error_num = append_hint_after_table_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
result_list.desc_flg = FALSE;
result_list.sorted = TRUE;
result_list.key_info = &table->key_info[active_index];
result_list.key_order = 0;
check_distinct_key_query();
result_list.limit_num =
result_list.internal_limit >= result_list.split_read ?
result_list.split_read : result_list.internal_limit;
if (
(error_num = spider_db_append_key_where(
NULL, NULL, this))
)
DBUG_RETURN(error_num);
{
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if (spider_start_bg(this, roop_count, roop_start, link_ok, &error_num))
DBUG_RETURN(error_num);
} else {
if (spider_send_query(this, table, roop_count, link_ok, &error_num))
DBUG_RETURN(error_num);
}
}
}
if (buf)
{
if (
result_list.sorted &&
result_list.desc_flg
) {
if ((error_num = spider_db_seek_last(buf, this, search_link_idx, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
if ((error_num = spider_db_seek_first(buf, this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
}
DBUG_RETURN(0);
}
int ha_spider::pre_index_first(
bool use_parallel
) {
DBUG_ENTER("ha_spider::pre_index_first");
DBUG_PRINT("info",("spider this=%p", this));
check_pre_call(use_parallel);
if (use_pre_call)
{
store_error_num =
index_first_internal(NULL);
DBUG_RETURN(store_error_num);
}
DBUG_RETURN(0);
}
int ha_spider::index_first(
uchar *buf
) {
int error_num;
DBUG_ENTER("ha_spider::index_first");
DBUG_PRINT("info",("spider this=%p", this));
if (use_pre_call)
{
if (store_error_num)
{
if (store_error_num == HA_ERR_END_OF_FILE)
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(store_error_num);
}
if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
DBUG_RETURN(error_num);
use_pre_call = FALSE;
DBUG_RETURN(index_next(buf));
}
DBUG_RETURN(index_first_internal(buf));
}
int ha_spider::index_last_internal(
uchar *buf
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::index_last_internal");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
do_direct_update = FALSE;
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
{
/*
spider_db_free_one_result_for_start_next(this);
*/
if ((error_num = spider_db_free_result(this, FALSE)))
DBUG_RETURN(error_num);
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
check_direct_order_limit();
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
check_select_column(FALSE);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (wide_handler->keyread)
result_list.keyread = TRUE;
else
result_list.keyread = FALSE;
if (
(error_num = spider_db_append_select(this)) ||
(error_num = spider_db_append_select_columns(this))
)
DBUG_RETURN(error_num);
if (
share->key_hint &&
(error_num = append_hint_after_table_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
result_list.desc_flg = TRUE;
result_list.sorted = TRUE;
result_list.key_info = &table->key_info[active_index];
result_list.key_order = 0;
check_distinct_key_query();
result_list.limit_num =
result_list.internal_limit >= result_list.split_read ?
result_list.split_read : result_list.internal_limit;
if (
(error_num = spider_db_append_key_where(
NULL, NULL, this))
)
DBUG_RETURN(error_num);
{
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if (spider_start_bg(this, roop_count, roop_start, link_ok, &error_num))
DBUG_RETURN(error_num);
} else {
if (spider_send_query(this, table, roop_count, link_ok, &error_num))
DBUG_RETURN(error_num);
}
}
}
if (buf)
{
if (
result_list.sorted &&
result_list.desc_flg
) {
if ((error_num = spider_db_seek_first(buf, this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
if ((error_num = spider_db_seek_last(buf, this, search_link_idx, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
}
DBUG_RETURN(0);
}
int ha_spider::pre_index_last(
bool use_parallel
) {
DBUG_ENTER("ha_spider::pre_index_last");
DBUG_PRINT("info",("spider this=%p", this));
check_pre_call(use_parallel);
if (use_pre_call)
{
store_error_num =
index_last_internal(NULL);
DBUG_RETURN(store_error_num);
}
DBUG_RETURN(0);
}
int ha_spider::index_last(
uchar *buf
) {
int error_num;
DBUG_ENTER("ha_spider::index_last");
DBUG_PRINT("info",("spider this=%p", this));
if (use_pre_call)
{
if (store_error_num)
{
if (store_error_num == HA_ERR_END_OF_FILE)
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(store_error_num);
}
if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
DBUG_RETURN(error_num);
use_pre_call = FALSE;
DBUG_RETURN(index_prev(buf));
}
DBUG_RETURN(index_last_internal(buf));
}
int ha_spider::index_next_same(
uchar *buf,
const uchar *key,
uint keylen
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::index_next_same");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
if (
result_list.sorted &&
result_list.desc_flg
) {
if ((error_num = spider_db_seek_prev(buf, this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
if ((error_num = spider_db_seek_next(buf, this, search_link_idx, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
int ha_spider::read_range_first_internal(
uchar *buf,
const key_range *start_key,
const key_range *end_key,
bool eq_range,
bool sorted
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::read_range_first_internal");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
do_direct_update = FALSE;
if (
start_key &&
start_key->flag >= HA_READ_MBR_CONTAIN &&
start_key->flag <= HA_READ_MBR_EQUAL
)
use_spatial_index = TRUE;
if (end_key)
{
key_compare_result_on_equal =
((end_key->flag == HA_READ_BEFORE_KEY) ? 1 :
(end_key->flag == HA_READ_AFTER_KEY) ? -1 : 0);
}
range_key_part = table->key_info[active_index].key_part;
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
spider_db_free_one_result_for_start_next(this);
check_direct_order_limit();
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
check_select_column(FALSE);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (wide_handler->keyread)
result_list.keyread = TRUE;
else
result_list.keyread = FALSE;
if (
(error_num = spider_db_append_select(this)) ||
(error_num = spider_db_append_select_columns(this))
)
DBUG_RETURN(error_num);
if (
share->key_hint &&
(error_num = append_hint_after_table_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
result_list.desc_flg = FALSE;
result_list.sorted = sorted;
result_list.key_info = &table->key_info[active_index];
check_distinct_key_query();
result_list.limit_num =
result_list.internal_limit >= result_list.split_read ?
result_list.split_read : result_list.internal_limit;
DBUG_PRINT("info",("spider limit_num=%lld", result_list.limit_num));
if (
(error_num = spider_db_append_key_where(
start_key, eq_range ? NULL : end_key, this))
)
DBUG_RETURN(error_num);
{
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if (spider_start_bg(this, roop_count, roop_start, link_ok, &error_num))
DBUG_RETURN(error_num);
} else {
if (spider_send_query(this, table, roop_count, link_ok, &error_num))
DBUG_RETURN(error_num);
}
}
if (buf && (error_num = spider_db_fetch(buf, this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
int ha_spider::pre_read_range_first(
const key_range *start_key,
const key_range *end_key,
bool eq_range,
bool sorted,
bool use_parallel
) {
DBUG_ENTER("ha_spider::pre_read_range_first");
DBUG_PRINT("info",("spider this=%p", this));
check_pre_call(use_parallel);
if (use_pre_call)
{
store_error_num =
read_range_first_internal(NULL, start_key, end_key, eq_range, sorted);
DBUG_RETURN(store_error_num);
}
DBUG_RETURN(0);
}
int ha_spider::read_range_first(
const key_range *start_key,
const key_range *end_key,
bool eq_range,
bool sorted
) {
int error_num;
DBUG_ENTER("ha_spider::read_range_first");
DBUG_PRINT("info",("spider this=%p", this));
if (use_pre_call)
{
if (store_error_num)
{
if (store_error_num == HA_ERR_END_OF_FILE)
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(store_error_num);
}
if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
DBUG_RETURN(error_num);
use_pre_call = FALSE;
if ((error_num = read_range_next()))
DBUG_RETURN(error_num);
DBUG_RETURN(0);
}
if ((error_num = read_range_first_internal(table->record[0], start_key,
end_key, eq_range, sorted)))
DBUG_RETURN(error_num);
DBUG_RETURN(0);
}
int ha_spider::read_range_next()
{
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::read_range_next");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
if (
result_list.sorted &&
result_list.desc_flg
) {
if ((error_num = spider_db_seek_prev(table->record[0], this, table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
if ((error_num = spider_db_seek_next(table->record[0], this, search_link_idx,
table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
void ha_spider::reset_no_where_cond()
{
uint roop_count;
DBUG_ENTER("ha_spider::reset_no_where_cond");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_handler[share->use_sql_dbton_ids[roop_count]]->no_where_cond =
FALSE;
}
DBUG_VOID_RETURN;
}
bool ha_spider::check_no_where_cond()
{
uint roop_count;
DBUG_ENTER("ha_spider::check_no_where_cond");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
if (dbton_handler[share->use_sql_dbton_ids[roop_count]]->no_where_cond)
{
DBUG_RETURN(TRUE);
}
}
DBUG_RETURN(FALSE);
}
ha_rows ha_spider::multi_range_read_info_const(
uint keyno,
RANGE_SEQ_IF *seq,
void *seq_init_param,
uint n_ranges,
uint *bufsz,
uint *flags,
ha_rows limit,
Cost_estimate *cost
)
{
DBUG_ENTER("ha_spider::multi_range_read_info_const");
DBUG_PRINT("info",("spider this=%p", this));
if (!pre_bitmap_checked)
{
if (wide_handler->external_lock_type == F_WRLCK)
{
pk_update = FALSE;
if (
wide_handler->update_request &&
share->have_recovery_link &&
(pk_update = spider_check_pk_update(table))
) {
bitmap_set_all(table->read_set);
if (is_clone)
memset(wide_handler->searched_bitmap, 0xFF,
my_bitmap_buffer_size(table->read_set));
}
}
if (!is_clone)
set_select_column_mode();
pre_bitmap_checked = TRUE;
}
/*
multi_range_num = n_ranges;
mrr_have_range = FALSE;
*/
ha_rows rows =
handler::multi_range_read_info_const(
keyno,
seq,
seq_init_param,
n_ranges,
bufsz,
flags,
limit,
cost
);
*flags &= ~HA_MRR_USE_DEFAULT_IMPL;
DBUG_PRINT("info",("spider rows=%llu", rows));
DBUG_RETURN(rows);
}
ha_rows ha_spider::multi_range_read_info(
uint keyno,
uint n_ranges,
uint keys,
uint key_parts,
uint *bufsz,
uint *flags,
Cost_estimate *cost
)
{
DBUG_ENTER("ha_spider::multi_range_read_info");
DBUG_PRINT("info",("spider this=%p", this));
if (!pre_bitmap_checked)
{
if (wide_handler->external_lock_type == F_WRLCK)
{
pk_update = FALSE;
if (
wide_handler->update_request &&
share->have_recovery_link &&
(pk_update = spider_check_pk_update(table))
) {
bitmap_set_all(table->read_set);
if (is_clone)
memset(wide_handler->searched_bitmap, 0xFF,
my_bitmap_buffer_size(table->read_set));
}
}
if (!is_clone)
set_select_column_mode();
pre_bitmap_checked = TRUE;
}
/*
multi_range_num = n_ranges;
mrr_have_range = FALSE;
*/
ha_rows rows =
handler::multi_range_read_info(
keyno,
n_ranges,
keys,
key_parts,
bufsz,
flags,
cost
);
*flags &= ~HA_MRR_USE_DEFAULT_IMPL;
DBUG_PRINT("info",("spider rows=%llu", rows));
DBUG_RETURN(rows);
}
int ha_spider::multi_range_read_init(
RANGE_SEQ_IF *seq,
void *seq_init_param,
uint n_ranges,
uint mode,
HANDLER_BUFFER *buf
) {
bka_mode = spider_param_bka_mode(wide_handler->trx->thd, share->bka_mode);
backup_error_status();
DBUG_ENTER("ha_spider::multi_range_read_init");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider n_ranges=%u", n_ranges));
multi_range_num = n_ranges;
mrr_have_range = FALSE;
reset_no_where_cond();
DBUG_RETURN(
handler::multi_range_read_init(
seq,
seq_init_param,
n_ranges,
mode,
buf
)
);
}
int ha_spider::multi_range_read_next_first(
range_id_t *range_info
)
{
int error_num, roop_count;
SPIDER_CONN *conn;
int range_res;
backup_error_status();
DBUG_ENTER("ha_spider::multi_range_read_next_first");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
do_direct_update = FALSE;
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
spider_db_free_one_result_for_start_next(this);
check_direct_order_limit();
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
check_select_column(FALSE);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
result_list.desc_flg = FALSE;
result_list.sorted = mrr_is_output_sorted;
result_list.key_info = &table->key_info[active_index];
if (multi_range_num == 1 || result_list.multi_split_read <= 1)
{
if (wide_handler->keyread)
result_list.keyread = TRUE;
else
result_list.keyread = FALSE;
mrr_with_cnt = FALSE;
if (
(error_num = spider_db_append_select(this)) ||
(error_num = spider_db_append_select_columns(this))
)
DBUG_RETURN(error_num);
if (
share->key_hint &&
(error_num = append_hint_after_table_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
error_num = HA_ERR_END_OF_FILE;
while (!(range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range)))
{
DBUG_PRINT("info",("spider range_res1=%d", range_res));
result_list.limit_num =
result_list.internal_limit - result_list.record_num >=
result_list.split_read ?
result_list.split_read :
result_list.internal_limit - result_list.record_num;
DBUG_PRINT("info",("spider limit_num=%lld", result_list.limit_num));
if (
(error_num = spider_db_append_key_where(
&mrr_cur_range.start_key,
SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ?
NULL : &mrr_cur_range.end_key, this))
)
DBUG_RETURN(error_num);
{
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
result_list.internal_offset + result_list.record_num,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if ((error_num = spider_check_and_init_casual_read(
wide_handler->trx->thd, this,
roop_count)))
DBUG_RETURN(error_num);
error_num = spider_bg_conn_search(this, roop_count, roop_start,
TRUE, FALSE, (roop_count != link_ok));
if (
error_num &&
error_num != HA_ERR_END_OF_FILE
) {
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
} else {
ulong sql_type;
conn= conns[roop_count];
sql_type= SPIDER_SQL_TYPE_SELECT_SQL;
spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
if ((error_num =
dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
{
DBUG_RETURN(error_num);
}
DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
spider_lock_before_query(conn, &need_mons[roop_count]);
if ((error_num = spider_db_set_names(this, conn,
roop_count)))
{
spider_unlock_after_query(conn, 0);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
if (!error_num)
{
spider_conn_set_timeout_from_share(conn, roop_count,
wide_handler->trx->thd, share);
if (dbton_hdl->execute_sql(
sql_type,
conn,
result_list.quick_mode,
&need_mons[roop_count])
) {
error_num= spider_unlock_after_query_1(conn);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
}
if (!error_num)
{
connection_ids[roop_count] = conn->connection_id;
if (roop_count == link_ok)
{
error_num = spider_unlock_after_query_2(conn, this, roop_count, table);
if (
error_num &&
error_num != HA_ERR_END_OF_FILE
) {
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
result_link_idx = link_ok;
} else {
spider_db_discard_result(this, roop_count, conn);
spider_unlock_after_query(conn, 0);
}
}
}
if (error_num)
break;
}
if (error_num)
{
if (
error_num != HA_ERR_END_OF_FILE &&
check_error_mode(error_num)
)
DBUG_RETURN(error_num);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (result_list.current)
{
DBUG_PRINT("info",
("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
spider_db_free_one_result(&result_list,
(SPIDER_RESULT *) result_list.current);
if (result_list.current == result_list.first)
result_list.current = NULL;
else
result_list.current = result_list.current->prev;
}
} else {
if (!range_info)
DBUG_RETURN(0);
if (!(error_num = spider_db_fetch(table->record[0], this, table)))
{
*range_info = (char *) mrr_cur_range.ptr;
DBUG_RETURN(0);
}
if (
error_num != HA_ERR_END_OF_FILE &&
check_error_mode(error_num)
)
DBUG_RETURN(error_num);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (result_list.current)
{
DBUG_PRINT("info",
("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
spider_db_free_one_result(&result_list,
(SPIDER_RESULT *) result_list.current);
if (result_list.current == result_list.first)
result_list.current = NULL;
else
result_list.current = result_list.current->prev;
}
}
if (check_no_where_cond())
{
DBUG_RETURN(check_error_mode_eof(0));
}
set_where_to_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
}
DBUG_PRINT("info",("spider range_res2=%d", range_res));
if (error_num)
DBUG_RETURN(check_error_mode_eof(error_num));
} else {
bool tmp_high_priority = wide_handler->high_priority;
bool have_multi_range;
const uchar *first_mrr_start_key;
const uchar *first_mrr_end_key;
uint first_mrr_start_key_length;
uint first_mrr_end_key_length;
have_second_range = FALSE;
if (wide_handler->keyread)
result_list.keyread = TRUE;
else
result_list.keyread = FALSE;
mrr_with_cnt = TRUE;
multi_range_cnt = 0;
multi_range_hit_point = 0;
if (multi_range_keys)
{
DBUG_PRINT("info",("spider free multi_range_keys=%p", multi_range_keys));
spider_free(spider_current_trx, multi_range_keys, MYF(0));
}
if (!(multi_range_keys = (range_id_t *)
spider_malloc(spider_current_trx, SPD_MID_HA_SPIDER_MULTI_RANGE_READ_NEXT_FIRST_1, sizeof(range_id_t) *
(multi_range_num < result_list.multi_split_read ?
multi_range_num : result_list.multi_split_read), MYF(MY_WME)))
)
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
DBUG_PRINT("info",("spider alloc multi_range_keys=%p", multi_range_keys));
if (!mrr_key_buff)
{
if (!(mrr_key_buff = new spider_string[2]))
{
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
}
for (roop_count = 0; roop_count < 2; roop_count++)
mrr_key_buff[roop_count].init_calc_mem(SPD_MID_HA_SPIDER_MULTI_RANGE_READ_NEXT_FIRST_3);
}
error_num = 0;
if ((range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range)))
{
DBUG_PRINT("info",("spider range_res3=%d", range_res));
DBUG_PRINT("info",("spider result_list.finish_flg = TRUE"));
result_list.finish_flg = TRUE;
if (result_list.current)
{
DBUG_PRINT("info",("spider result_list.current->finish_flg = TRUE"));
result_list.current->finish_flg = TRUE;
}
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(HA_ERR_END_OF_FILE);
}
DBUG_PRINT("info",("spider range_res4=%d", range_res));
mrr_key_buff[0].length(0);
first_mrr_start_key = mrr_cur_range.start_key.key;
first_mrr_start_key_length = mrr_cur_range.start_key.length;
if (first_mrr_start_key_length)
{
if (mrr_key_buff[0].reserve(first_mrr_start_key_length))
DBUG_RETURN(HA_ERR_END_OF_FILE);
mrr_key_buff[0].q_append((const char *) first_mrr_start_key,
first_mrr_start_key_length);
mrr_cur_range.start_key.key = (const uchar *) mrr_key_buff[0].ptr();
}
mrr_key_buff[1].length(0);
first_mrr_end_key = mrr_cur_range.end_key.key;
first_mrr_end_key_length = mrr_cur_range.end_key.length;
if (first_mrr_end_key_length)
{
if (mrr_key_buff[1].reserve(first_mrr_end_key_length))
DBUG_RETURN(HA_ERR_END_OF_FILE);
mrr_key_buff[1].q_append((const char *) first_mrr_end_key,
first_mrr_end_key_length);
mrr_cur_range.end_key.key = (const uchar *) mrr_key_buff[1].ptr();
}
result_list.tmp_table_join = FALSE;
memset(result_list.tmp_table_join_first, 0, share->link_bitmap_size);
do
{
if ((range_res = mrr_funcs.next(mrr_iter, &mrr_second_range)))
{
have_second_range = FALSE;
have_multi_range = FALSE;
} else {
have_second_range = TRUE;
have_multi_range = TRUE;
}
DBUG_PRINT("info",("spider range_res5=%d", range_res));
result_list.tmp_reuse_sql = FALSE;
if (bka_mode &&
have_multi_range &&
SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE)
) {
if (
result_list.tmp_table_join &&
result_list.tmp_table_join_key_part_map ==
mrr_cur_range.start_key.keypart_map
) {
/* reuse tmp_sql */
result_list.tmp_reuse_sql = TRUE;
} else {
/* create tmp_sql */
result_list.tmp_table_join = TRUE;
result_list.tmp_table_join_key_part_map =
mrr_cur_range.start_key.keypart_map;
if ((error_num = reset_sql_sql(
SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL)))
DBUG_RETURN(error_num);
}
memset(result_list.tmp_table_join_first, 0xFF,
share->link_bitmap_size);
} else {
result_list.tmp_table_join = FALSE;
}
result_list.tmp_table_join_break_after_get_next = FALSE;
if (result_list.tmp_table_join)
{
result_list.limit_num =
result_list.internal_limit >= result_list.split_read ?
result_list.split_read : result_list.internal_limit;
if (bka_mode == 2)
{
if (!result_list.tmp_reuse_sql)
{
if ((error_num = append_union_table_and_sql_for_bka(
&mrr_cur_range.start_key
))) {
DBUG_RETURN(error_num);
}
} else {
if ((error_num = reuse_union_table_and_sql_for_bka()))
{
DBUG_RETURN(error_num);
}
}
} else {
if (!result_list.tmp_reuse_sql)
{
if ((error_num = append_tmp_table_and_sql_for_bka(
&mrr_cur_range.start_key
))) {
DBUG_RETURN(error_num);
}
} else {
if ((error_num = reuse_tmp_table_and_sql_for_bka()))
{
DBUG_RETURN(error_num);
}
}
}
do
{
if (
!SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ||
result_list.tmp_table_join_key_part_map !=
mrr_cur_range.start_key.keypart_map
) {
result_list.tmp_table_join_break_after_get_next = TRUE;
break;
}
multi_range_keys[multi_range_cnt] = mrr_cur_range.ptr;
if (bka_mode == 2)
{
if ((error_num = spider_db_append_select(this)))
DBUG_RETURN(error_num);
if (multi_range_cnt == 0)
{
if ((error_num = append_multi_range_cnt_with_name_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt)))
DBUG_RETURN(error_num);
if ((error_num = append_key_column_values_with_name_sql_part(
&mrr_cur_range.start_key,
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_multi_range_cnt_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt, TRUE)))
DBUG_RETURN(error_num);
if ((error_num = append_key_column_values_sql_part(
&mrr_cur_range.start_key,
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_union_table_connector_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_multi_range_cnt_sql_part(
SPIDER_SQL_TYPE_TMP_SQL, multi_range_cnt, TRUE)))
DBUG_RETURN(error_num);
if ((error_num = append_key_column_values_sql_part(
&mrr_cur_range.start_key,
SPIDER_SQL_TYPE_TMP_SQL)))
DBUG_RETURN(error_num);
if ((error_num =
append_values_connector_sql_part(SPIDER_SQL_TYPE_TMP_SQL)))
DBUG_RETURN(error_num);
}
multi_range_cnt++;
if (multi_range_cnt >= (uint) result_list.multi_split_read)
break;
if (multi_range_cnt == 1)
{
if (have_multi_range)
{
memcpy(&mrr_cur_range, &mrr_second_range,
sizeof(KEY_MULTI_RANGE));
have_second_range = FALSE;
range_res = 0;
} else {
range_res = 1;
}
} else {
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res6=%d", range_res));
}
}
while (!range_res);
if (bka_mode == 2)
{
if ((error_num = append_union_table_terminator_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num =
append_values_terminator_sql_part(SPIDER_SQL_TYPE_TMP_SQL)))
DBUG_RETURN(error_num);
}
result_list.use_union = FALSE;
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
} else {
result_list.limit_num = result_list.internal_limit;
result_list.split_read = result_list.internal_limit;
if (
(error_num = init_union_table_name_pos_sql()) ||
(error_num = append_union_all_start_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
do
{
DBUG_PRINT("info",("spider range_res7=%d", range_res));
multi_range_keys[multi_range_cnt] = mrr_cur_range.ptr;
if ((error_num = spider_db_append_select(this)))
DBUG_RETURN(error_num);
if ((error_num = append_multi_range_cnt_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt, TRUE)))
DBUG_RETURN(error_num);
if (
(error_num = spider_db_append_select_columns(this)) ||
(error_num = set_union_table_name_pos_sql())
)
DBUG_RETURN(error_num);
wide_handler->high_priority = FALSE;
if (
share->key_hint &&
(error_num = append_hint_after_table_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
DBUG_PRINT("info",("spider internal_offset=%lld",
result_list.internal_offset));
DBUG_PRINT("info",("spider limit_num=%lld", result_list.limit_num));
if (
(error_num = spider_db_append_key_where(
&mrr_cur_range.start_key,
SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ?
NULL : &mrr_cur_range.end_key, this))
)
DBUG_RETURN(error_num);
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
0,
result_list.internal_offset + result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
if ((error_num = append_union_all_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
multi_range_cnt++;
if (multi_range_cnt >= (uint) result_list.multi_split_read)
break;
if (multi_range_cnt == 1)
{
if (have_multi_range)
{
memcpy(&mrr_cur_range, &mrr_second_range,
sizeof(KEY_MULTI_RANGE));
have_second_range = FALSE;
range_res = 0;
} else {
range_res = 1;
}
} else {
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res8=%d", range_res));
}
if (check_no_where_cond())
{
range_res = 1;
break;
}
}
while (!range_res);
wide_handler->high_priority = tmp_high_priority;
if ((error_num = append_union_all_end_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
result_list.use_union = TRUE;
bool direct_aggregate_backup = result_list.direct_aggregate;
result_list.direct_aggregate = FALSE;
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
result_list.direct_aggregate = direct_aggregate_backup;
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if ((error_num = spider_check_and_init_casual_read(
wide_handler->trx->thd, this,
roop_count)))
DBUG_RETURN(error_num);
if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
TRUE, FALSE, (roop_count != link_ok))))
{
if (
error_num != HA_ERR_END_OF_FILE
) {
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
break;
}
} else {
ulong sql_type;
conn= conns[roop_count];
sql_type= SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL;
spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
if ((error_num =
dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
{
DBUG_RETURN(error_num);
}
sql_type &= ~SPIDER_SQL_TYPE_TMP_SQL;
DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
spider_lock_before_query(conn, &need_mons[roop_count]);
if ((error_num = spider_db_set_names(this, conn,
roop_count)))
{
spider_unlock_after_query(conn, 0);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
break;
}
if (
result_list.tmp_table_join && bka_mode != 2 &&
spider_bit_is_set(result_list.tmp_table_join_first, roop_count)
) {
spider_clear_bit(result_list.tmp_table_join_first, roop_count);
spider_set_bit(result_list.tmp_table_created, roop_count);
result_list.tmp_tables_created = TRUE;
spider_conn_set_timeout_from_share(conn, roop_count,
wide_handler->trx->thd, share);
if (dbton_hdl->execute_sql(
SPIDER_SQL_TYPE_TMP_SQL,
conn,
-1,
&need_mons[roop_count])
) {
error_num= spider_unlock_after_query_1(conn);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
break;
}
spider_db_discard_multiple_result(this, roop_count, conn);
}
spider_conn_set_timeout_from_share(conn, roop_count,
wide_handler->trx->thd, share);
if (dbton_hdl->execute_sql(
sql_type,
conn,
result_list.quick_mode,
&need_mons[roop_count])
) {
error_num= spider_unlock_after_query_1(conn);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
break;
}
connection_ids[roop_count] = conn->connection_id;
if (roop_count == link_ok)
{
if ((error_num = spider_unlock_after_query_2(conn, this, roop_count, table)))
{
if (
error_num != HA_ERR_END_OF_FILE
) {
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
break;
}
result_link_idx = link_ok;
} else {
spider_db_discard_result(this, roop_count, conn);
spider_unlock_after_query(conn, 0);
}
}
}
if (error_num)
{
if (
error_num != HA_ERR_END_OF_FILE &&
!check_error_mode(error_num)
)
error_num = HA_ERR_END_OF_FILE;
if (error_num == HA_ERR_END_OF_FILE)
{
if (multi_range_cnt >= (uint) result_list.multi_split_read)
{
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res9=%d", range_res));
}
if (
range_res
) {
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(error_num);
}
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (result_list.current)
{
DBUG_PRINT("info",
("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
spider_db_free_one_result(&result_list,
(SPIDER_RESULT *) result_list.current);
if (result_list.current == result_list.first)
result_list.current = NULL;
else
result_list.current = result_list.current->prev;
}
error_num = 0;
} else
DBUG_RETURN(error_num);
} else {
if (!range_info)
DBUG_RETURN(0);
if (!(error_num = spider_db_fetch(table->record[0], this, table)))
{
*range_info = multi_range_keys[multi_range_hit_point];
DBUG_RETURN(0);
}
if (
error_num != HA_ERR_END_OF_FILE &&
!check_error_mode(error_num)
)
error_num = HA_ERR_END_OF_FILE;
if (error_num == HA_ERR_END_OF_FILE)
{
if (multi_range_cnt >= (uint) result_list.multi_split_read)
{
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res10=%d", range_res));
}
if (
range_res
) {
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(error_num);
}
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (result_list.current)
{
DBUG_PRINT("info",
("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
spider_db_free_one_result(&result_list,
(SPIDER_RESULT *) result_list.current);
if (result_list.current == result_list.first)
result_list.current = NULL;
else
result_list.current = result_list.current->prev;
}
error_num = 0;
} else
DBUG_RETURN(error_num);
}
if (check_no_where_cond())
{
DBUG_RETURN(check_error_mode_eof(0));
}
multi_range_cnt = 0;
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} while (!error_num);
}
DBUG_RETURN(0);
}
int ha_spider::pre_multi_range_read_next(
bool use_parallel
) {
DBUG_ENTER("ha_spider::pre_multi_range_read_next");
DBUG_PRINT("info",("spider this=%p", this));
check_pre_call(use_parallel);
if (use_pre_call)
{
store_error_num =
multi_range_read_next_first(NULL);
DBUG_RETURN(store_error_num);
}
DBUG_RETURN(0);
}
int ha_spider::multi_range_read_next(
range_id_t *range_info
)
{
int error_num;
DBUG_ENTER("ha_spider::multi_range_read_next");
DBUG_PRINT("info",("spider this=%p", this));
if (use_pre_call)
{
if (store_error_num)
{
if (store_error_num == HA_ERR_END_OF_FILE)
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(store_error_num);
}
if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
DBUG_RETURN(error_num);
use_pre_call = FALSE;
mrr_have_range = TRUE;
DBUG_RETURN(multi_range_read_next_next(range_info));
}
if (!mrr_have_range)
{
error_num = multi_range_read_next_first(range_info);
mrr_have_range = TRUE;
} else
error_num = multi_range_read_next_next(range_info);
DBUG_RETURN(error_num);
}
int ha_spider::multi_range_read_next_next(
range_id_t *range_info
)
{
int error_num;
SPIDER_CONN *conn;
int range_res;
backup_error_status();
DBUG_ENTER("ha_spider::multi_range_read_next_next");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
if (multi_range_num == 1 || result_list.multi_split_read <= 1)
{
if (!(error_num = spider_db_seek_next(table->record[0], this,
search_link_idx, table)))
{
*range_info = (char *) mrr_cur_range.ptr;
DBUG_RETURN(0);
}
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res1=%d", range_res));
if (
error_num != HA_ERR_END_OF_FILE &&
!check_error_mode(error_num)
)
error_num = HA_ERR_END_OF_FILE;
if (
error_num != HA_ERR_END_OF_FILE ||
range_res
)
DBUG_RETURN(error_num);
spider_db_free_one_result_for_start_next(this);
spider_first_split_read_param(this);
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
if (result_list.current)
{
DBUG_PRINT("info",("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
}
result_list.record_num = 0;
do
{
DBUG_PRINT("info",("spider range_res2=%d", range_res));
if (check_no_where_cond())
{
DBUG_RETURN(check_error_mode_eof(0));
}
set_where_to_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
result_list.limit_num =
result_list.internal_limit - result_list.record_num >=
result_list.split_read ?
result_list.split_read :
result_list.internal_limit - result_list.record_num;
if (
(error_num = spider_db_append_key_where(
&mrr_cur_range.start_key,
SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ?
NULL : &mrr_cur_range.end_key, this))
)
DBUG_RETURN(error_num);
{
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
result_list.internal_offset + result_list.record_num,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if ((error_num = spider_check_and_init_casual_read(
wide_handler->trx->thd, this,
roop_count)))
DBUG_RETURN(error_num);
error_num = spider_bg_conn_search(this, roop_count, roop_start,
TRUE, FALSE, (roop_count != link_ok));
if (
error_num &&
error_num != HA_ERR_END_OF_FILE
) {
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
} else {
ulong sql_type;
conn= conns[roop_count];
sql_type= SPIDER_SQL_TYPE_SELECT_SQL;
spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
if ((error_num =
dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
{
DBUG_RETURN(error_num);
}
DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
spider_lock_before_query(conn, &need_mons[roop_count]);
if ((error_num = spider_db_set_names(this, conn,
roop_count)))
{
spider_unlock_after_query(conn, 0);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
if (!error_num)
{
spider_conn_set_timeout_from_share(conn, roop_count,
wide_handler->trx->thd, share);
if (dbton_hdl->execute_sql(
sql_type,
conn,
result_list.quick_mode,
&need_mons[roop_count])
) {
error_num= spider_unlock_after_query_1(conn);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
}
if (!error_num)
{
connection_ids[roop_count] = conn->connection_id;
if (roop_count == link_ok)
{
error_num = spider_unlock_after_query_2(conn, this, roop_count, table);
if (
error_num &&
error_num != HA_ERR_END_OF_FILE
) {
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
result_link_idx = link_ok;
} else {
spider_db_discard_result(this, roop_count, conn);
spider_unlock_after_query(conn, 0);
}
}
}
if (error_num)
break;
}
if (error_num)
{
if (
error_num != HA_ERR_END_OF_FILE &&
!check_error_mode(error_num)
)
error_num = HA_ERR_END_OF_FILE;
if (error_num == HA_ERR_END_OF_FILE)
{
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (result_list.current)
{
DBUG_PRINT("info",
("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
spider_db_free_one_result(&result_list,
(SPIDER_RESULT *) result_list.current);
result_list.current = result_list.current->prev;
}
} else
DBUG_RETURN(error_num);
} else {
if (!(error_num = spider_db_fetch(table->record[0], this, table)))
{
*range_info = (char *) mrr_cur_range.ptr;
DBUG_RETURN(0);
}
if (
error_num != HA_ERR_END_OF_FILE &&
!check_error_mode(error_num)
)
error_num = HA_ERR_END_OF_FILE;
if (error_num == HA_ERR_END_OF_FILE)
{
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (result_list.current)
{
DBUG_PRINT("info",
("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
spider_db_free_one_result(&result_list,
(SPIDER_RESULT *) result_list.current);
result_list.current = result_list.current->prev;
}
} else
DBUG_RETURN(error_num);
}
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res3=%d", range_res));
}
while (!range_res);
if (error_num)
DBUG_RETURN(check_error_mode_eof(error_num));
} else {
if (!(error_num = spider_db_seek_next(table->record[0], this,
search_link_idx, table)))
{
*range_info = multi_range_keys[multi_range_hit_point];
DBUG_RETURN(0);
}
const uchar *first_mrr_start_key;
const uchar *first_mrr_end_key;
uint first_mrr_start_key_length;
uint first_mrr_end_key_length;
if (!result_list.tmp_table_join_break_after_get_next)
{
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res4=%d", range_res));
if (!range_res)
{
mrr_key_buff[0].length(0);
first_mrr_start_key = mrr_cur_range.start_key.key;
first_mrr_start_key_length = mrr_cur_range.start_key.length;
if (first_mrr_start_key_length)
{
if (mrr_key_buff[0].reserve(first_mrr_start_key_length))
DBUG_RETURN(HA_ERR_END_OF_FILE);
mrr_key_buff[0].q_append((const char *) first_mrr_start_key,
first_mrr_start_key_length);
mrr_cur_range.start_key.key = (const uchar *) mrr_key_buff[0].ptr();
}
mrr_key_buff[1].length(0);
first_mrr_end_key = mrr_cur_range.end_key.key;
first_mrr_end_key_length = mrr_cur_range.end_key.length;
if (first_mrr_end_key_length)
{
if (mrr_key_buff[1].reserve(first_mrr_end_key_length))
DBUG_RETURN(HA_ERR_END_OF_FILE);
mrr_key_buff[1].q_append((const char *) first_mrr_end_key,
first_mrr_end_key_length);
mrr_cur_range.end_key.key = (const uchar *) mrr_key_buff[1].ptr();
}
}
} else {
result_list.tmp_table_join_break_after_get_next = FALSE;
range_res = 0;
}
if (
error_num != HA_ERR_END_OF_FILE &&
!check_error_mode(error_num)
)
error_num = HA_ERR_END_OF_FILE;
if (
error_num != HA_ERR_END_OF_FILE ||
range_res
)
DBUG_RETURN(error_num);
if (check_no_where_cond())
{
DBUG_RETURN(check_error_mode_eof(0));
}
spider_db_free_one_result_for_start_next(this);
spider_first_split_read_param(this);
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
if (result_list.current)
{
DBUG_PRINT("info",("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
}
result_list.record_num = 0;
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
bool tmp_high_priority = wide_handler->high_priority;
bool have_multi_range;
multi_range_cnt = 0;
error_num = 0;
do
{
if (
!have_second_range &&
(range_res = mrr_funcs.next(mrr_iter, &mrr_second_range))
)
{
have_second_range = FALSE;
have_multi_range = FALSE;
} else {
have_second_range = TRUE;
have_multi_range = TRUE;
}
DBUG_PRINT("info",("spider range_res5=%d", range_res));
result_list.tmp_reuse_sql = FALSE;
if (bka_mode &&
have_multi_range &&
SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE)
) {
if (
result_list.tmp_table_join &&
result_list.tmp_table_join_key_part_map ==
mrr_cur_range.start_key.keypart_map
) {
/* reuse tmp_sql */
result_list.tmp_reuse_sql = TRUE;
} else {
/* create tmp_sql */
result_list.tmp_table_join = TRUE;
result_list.tmp_table_join_key_part_map =
mrr_cur_range.start_key.keypart_map;
if ((error_num = reset_sql_sql(
SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL)))
DBUG_RETURN(error_num);
}
memset(result_list.tmp_table_join_first, 0xFF,
share->link_bitmap_size);
} else {
result_list.tmp_table_join = FALSE;
}
if (result_list.tmp_table_join)
{
result_list.limit_num =
result_list.internal_limit - result_list.record_num >=
result_list.split_read ?
result_list.split_read :
result_list.internal_limit - result_list.record_num;
if (bka_mode == 2)
{
if (!result_list.tmp_reuse_sql)
{
if ((error_num = append_union_table_and_sql_for_bka(
&mrr_cur_range.start_key
))) {
DBUG_RETURN(error_num);
}
} else {
if ((error_num = reuse_union_table_and_sql_for_bka()))
{
DBUG_RETURN(error_num);
}
}
} else {
if (!result_list.tmp_reuse_sql)
{
if ((error_num = append_tmp_table_and_sql_for_bka(
&mrr_cur_range.start_key
))) {
DBUG_RETURN(error_num);
}
} else {
if ((error_num = reuse_tmp_table_and_sql_for_bka()))
{
DBUG_RETURN(error_num);
}
}
}
do
{
if (
!SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ||
result_list.tmp_table_join_key_part_map !=
mrr_cur_range.start_key.keypart_map
) {
result_list.tmp_table_join_break_after_get_next = TRUE;
break;
}
multi_range_keys[multi_range_cnt] = mrr_cur_range.ptr;
if (bka_mode == 2)
{
if ((error_num = spider_db_append_select(this)))
DBUG_RETURN(error_num);
if (multi_range_cnt == 0)
{
if ((error_num = append_multi_range_cnt_with_name_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt)))
DBUG_RETURN(error_num);
if ((error_num = append_key_column_values_with_name_sql_part(
&mrr_cur_range.start_key,
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_multi_range_cnt_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt, TRUE)))
DBUG_RETURN(error_num);
if ((error_num = append_key_column_values_sql_part(
&mrr_cur_range.start_key,
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_union_table_connector_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_multi_range_cnt_sql_part(
SPIDER_SQL_TYPE_TMP_SQL, multi_range_cnt, TRUE)))
DBUG_RETURN(error_num);
if ((error_num = append_key_column_values_sql_part(
&mrr_cur_range.start_key,
SPIDER_SQL_TYPE_TMP_SQL)))
DBUG_RETURN(error_num);
if ((error_num =
append_values_connector_sql_part(SPIDER_SQL_TYPE_TMP_SQL)))
DBUG_RETURN(error_num);
}
multi_range_cnt++;
if (multi_range_cnt >= (uint) result_list.multi_split_read)
break;
if (multi_range_cnt == 1)
{
if (have_multi_range)
{
memcpy(&mrr_cur_range, &mrr_second_range,
sizeof(KEY_MULTI_RANGE));
have_second_range = FALSE;
range_res = 0;
} else {
range_res = 1;
}
} else {
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res6=%d", range_res));
}
}
while (!range_res);
if (bka_mode == 2)
{
if ((error_num = append_union_table_terminator_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num =
append_values_terminator_sql_part(SPIDER_SQL_TYPE_TMP_SQL)))
DBUG_RETURN(error_num);
}
result_list.use_union = FALSE;
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
} else {
result_list.limit_num =
result_list.internal_limit - result_list.record_num;
if (
(error_num = init_union_table_name_pos_sql()) ||
(error_num =
append_union_all_start_sql_part(SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
do
{
multi_range_keys[multi_range_cnt] = mrr_cur_range.ptr;
if ((error_num = spider_db_append_select(this)))
DBUG_RETURN(error_num);
if ((error_num = append_multi_range_cnt_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt, TRUE)))
DBUG_RETURN(error_num);
if (
(error_num = spider_db_append_select_columns(this)) ||
(error_num = set_union_table_name_pos_sql())
)
DBUG_RETURN(error_num);
wide_handler->high_priority = FALSE;
if (
share->key_hint &&
(error_num = append_hint_after_table_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
)
DBUG_RETURN(error_num);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
if (
(error_num = spider_db_append_key_where(
&mrr_cur_range.start_key,
SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ?
NULL : &mrr_cur_range.end_key, this))
)
DBUG_RETURN(error_num);
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
if ((error_num = append_limit_sql_part(
0,
result_list.internal_offset + result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if ((error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
if ((error_num =
append_union_all_sql_part(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
multi_range_cnt++;
if (multi_range_cnt >= (uint) result_list.multi_split_read)
break;
if (multi_range_cnt == 1)
{
if (have_multi_range)
{
memcpy(&mrr_cur_range, &mrr_second_range,
sizeof(KEY_MULTI_RANGE));
have_second_range = FALSE;
range_res = 0;
} else {
range_res = 1;
}
} else {
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res7=%d", range_res));
}
}
while (!range_res);
wide_handler->high_priority = tmp_high_priority;
if ((error_num =
append_union_all_end_sql_part(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
result_list.use_union = TRUE;
bool direct_aggregate_backup = result_list.direct_aggregate;
result_list.direct_aggregate = FALSE;
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} else {
if ((error_num = append_key_order_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
result_list.direct_aggregate = direct_aggregate_backup;
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if ((error_num = spider_check_and_init_casual_read(
wide_handler->trx->thd, this,
roop_count)))
DBUG_RETURN(error_num);
if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
TRUE, FALSE, (roop_count != link_ok))))
{
if (
error_num != HA_ERR_END_OF_FILE
) {
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
break;
}
} else {
ulong sql_type;
conn= conns[roop_count];
sql_type= SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL;
spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
if ((error_num =
dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
{
DBUG_RETURN(error_num);
}
sql_type &= ~SPIDER_SQL_TYPE_TMP_SQL;
DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
spider_lock_before_query(conn, &need_mons[roop_count]);
if ((error_num = spider_db_set_names(this, conn,
roop_count)))
{
spider_unlock_after_query(conn, 0);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
break;
}
if (
result_list.tmp_table_join && bka_mode != 2 &&
spider_bit_is_set(result_list.tmp_table_join_first, roop_count)
) {
spider_clear_bit(result_list.tmp_table_join_first, roop_count);
spider_set_bit(result_list.tmp_table_created, roop_count);
result_list.tmp_tables_created = TRUE;
spider_conn_set_timeout_from_share(conn, roop_count,
wide_handler->trx->thd, share);
if (dbton_hdl->execute_sql(
SPIDER_SQL_TYPE_TMP_SQL,
conn,
-1,
&need_mons[roop_count])
) {
error_num= spider_unlock_after_query_1(conn);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
break;
}
spider_db_discard_multiple_result(this, roop_count, conn);
}
spider_conn_set_timeout_from_share(conn, roop_count,
wide_handler->trx->thd, share);
if (dbton_hdl->execute_sql(
sql_type,
conn,
result_list.quick_mode,
&need_mons[roop_count])
) {
error_num= spider_unlock_after_query_1(conn);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
break;
}
connection_ids[roop_count] = conn->connection_id;
if (roop_count == link_ok)
{
if ((error_num = spider_unlock_after_query_2(conn, this, roop_count, table)))
{
if (
error_num != HA_ERR_END_OF_FILE
) {
error_num= spider_maybe_ping_1(this, search_link_idx, error_num);
}
break;
}
result_link_idx = link_ok;
} else {
spider_db_discard_result(this, roop_count, conn);
spider_unlock_after_query(conn, 0);
}
}
}
if (error_num)
{
if (
error_num != HA_ERR_END_OF_FILE &&
!check_error_mode(error_num)
)
error_num = HA_ERR_END_OF_FILE;
if (error_num == HA_ERR_END_OF_FILE)
{
if (multi_range_cnt >= (uint) result_list.multi_split_read)
{
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res8=%d", range_res));
}
if (
range_res
) {
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(error_num);
}
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (result_list.current)
{
DBUG_PRINT("info",
("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
spider_db_free_one_result(&result_list,
(SPIDER_RESULT *) result_list.current);
if (result_list.current == result_list.first)
result_list.current = NULL;
else
result_list.current = result_list.current->prev;
}
error_num = 0;
} else
DBUG_RETURN(error_num);
} else {
if (!(error_num = spider_db_fetch(table->record[0], this, table)))
{
*range_info = multi_range_keys[multi_range_hit_point];
DBUG_RETURN(0);
}
if (
error_num != HA_ERR_END_OF_FILE &&
!check_error_mode(error_num)
)
error_num = HA_ERR_END_OF_FILE;
if (error_num == HA_ERR_END_OF_FILE)
{
if (multi_range_cnt >= (uint) result_list.multi_split_read)
{
range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
DBUG_PRINT("info",("spider range_res9=%d", range_res));
}
if (
range_res
) {
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(error_num);
}
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (result_list.current)
{
DBUG_PRINT("info",
("spider result_list.current->finish_flg = FALSE"));
result_list.current->finish_flg = FALSE;
spider_db_free_one_result(&result_list,
(SPIDER_RESULT *) result_list.current);
if (result_list.current == result_list.first)
result_list.current = NULL;
else
result_list.current = result_list.current->prev;
}
error_num = 0;
} else
DBUG_RETURN(error_num);
}
if (check_no_where_cond())
{
DBUG_RETURN(check_error_mode_eof(0));
}
multi_range_cnt = 0;
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
} while (!error_num);
}
DBUG_RETURN(0);
}
int ha_spider::rnd_init(
bool scan
) {
int error_num;
DBUG_ENTER("ha_spider::rnd_init");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider scan=%s", scan ? "TRUE" : "FALSE"));
if (!dml_inited)
{
if (unlikely((error_num = dml_init())))
{
DBUG_RETURN(error_num);
}
}
pushed_pos = NULL;
rnd_scan_and_first = scan;
if (
scan &&
wide_handler->sql_command != SQLCOM_ALTER_TABLE
) {
spider_set_result_list_param(this);
pk_update = FALSE;
if (
result_list.current &&
!result_list.low_mem_read &&
prev_index_rnd_init == SPD_RND
) {
result_list.current = result_list.first;
spider_db_set_pos_to_first_row(&result_list);
rnd_scan_and_first = FALSE;
} else {
spider_db_free_one_result_for_start_next(this);
if (
result_list.current &&
result_list.low_mem_read
) {
int roop_start, roop_end, roop_count, tmp_lock_mode;
tmp_lock_mode = spider_conn_lock_mode(this);
if (tmp_lock_mode)
{
/* "for update" or "lock in share mode" */
roop_start = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
roop_end = share->link_count;
} else {
roop_start = search_link_idx;
roop_end = search_link_idx + 1;
}
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (conns[roop_count] && result_list.bgs_working)
spider_bg_conn_break(conns[roop_count], this);
if (quick_targets[roop_count])
{
spider_db_free_one_quick_result(
(SPIDER_RESULT *) result_list.current);
DBUG_ASSERT(quick_targets[roop_count] ==
conns[roop_count]->quick_target);
DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL",
conns[roop_count]));
conns[roop_count]->quick_target = NULL;
quick_targets[roop_count] = NULL;
}
}
result_list.record_num = 0;
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.quick_phase = 0;
result_list.bgs_phase = 0;
}
mrr_with_cnt = FALSE;
use_spatial_index = FALSE;
if (
wide_handler->update_request &&
share->have_recovery_link &&
wide_handler->external_lock_type == F_WRLCK &&
(pk_update = spider_check_pk_update(table))
) {
bitmap_set_all(table->read_set);
if (is_clone)
memset(wide_handler->searched_bitmap, 0xFF,
my_bitmap_buffer_size(table->read_set));
}
set_select_column_mode();
result_list.keyread = FALSE;
init_rnd_handler = FALSE;
if ((error_num= reset_sql_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
result_list.check_direct_order_limit = FALSE;
}
}
prev_index_rnd_init = SPD_RND;
DBUG_RETURN(0);
}
int ha_spider::rnd_end()
{
/*
int error_num;
backup_error_status();
*/
DBUG_ENTER("ha_spider::rnd_end");
DBUG_PRINT("info",("spider this=%p", this));
/*
#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
info_limit = 9223372036854775807LL;
#endif
if (
(error_num = check_and_end_bulk_update(
SPD_BU_START_BY_INDEX_OR_RND_INIT)) ||
(error_num = spider_trx_check_link_idx_failed(this))
)
DBUG_RETURN(check_error_mode(error_num));
*/
DBUG_RETURN(0);
}
int ha_spider::rnd_next_internal(
uchar *buf
) {
int error_num;
ha_spider *direct_limit_offset_spider =
(ha_spider *) partition_handler->owner;
backup_error_status();
DBUG_ENTER("ha_spider::rnd_next_internal");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
/* do not copy table data at alter table */
if (wide_handler->sql_command == SQLCOM_ALTER_TABLE)
DBUG_RETURN(HA_ERR_END_OF_FILE);
do_direct_update = FALSE;
if (rnd_scan_and_first)
{
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
check_direct_order_limit();
check_select_column(TRUE);
if (this->result_list.direct_limit_offset)
{
if (direct_limit_offset_spider->direct_select_limit == 0)
{ // mean has got all result
DBUG_RETURN(check_error_mode_eof(HA_ERR_END_OF_FILE));
}
if (
partition_handler->handlers &&
direct_limit_offset_spider->direct_current_offset > 0
) {
longlong table_count = this->records();
DBUG_PRINT("info",("spider table_count=%lld", table_count));
if (table_count <= direct_limit_offset_spider->direct_current_offset)
{
// skip this spider(partition)
direct_limit_offset_spider->direct_current_offset -= table_count;
DBUG_PRINT("info",("spider direct_current_offset=%lld",
direct_limit_offset_spider->direct_current_offset));
DBUG_RETURN(check_error_mode_eof(HA_ERR_END_OF_FILE));
}
}
// make the offset/limit statement
DBUG_PRINT("info",("spider direct_current_offset=%lld",
direct_limit_offset_spider->direct_current_offset));
result_list.internal_offset = direct_limit_offset_spider->direct_current_offset;
DBUG_PRINT("info",("spider direct_select_limit=%lld",
direct_limit_offset_spider->direct_select_limit));
result_list.internal_limit = direct_limit_offset_spider->direct_select_limit;
result_list.split_read = direct_limit_offset_spider->direct_select_limit;
// start with this spider(partition)
direct_limit_offset_spider->direct_current_offset = 0;
}
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (
(error_num = spider_db_append_select(this)) ||
(error_num = spider_db_append_select_columns(this))
)
DBUG_RETURN(error_num);
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
/* append condition pushdown */
if (spider_db_append_condition(this, NULL, 0, FALSE))
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
set_order_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(
NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
else if (result_list.direct_aggregate)
{
if ((error_num =
append_group_by_sql_part(NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
result_list.desc_flg = FALSE;
result_list.sorted = FALSE;
result_list.key_info = NULL;
result_list.limit_num =
result_list.internal_limit >= result_list.split_read ?
result_list.split_read : result_list.internal_limit;
{
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if (spider_start_bg(this, roop_count, roop_start, link_ok, &error_num))
DBUG_RETURN(error_num);
} else {
if (spider_send_query(this, table, roop_count, link_ok, &error_num))
DBUG_RETURN(error_num);
}
}
rnd_scan_and_first = FALSE;
if (this->result_list.direct_limit_offset)
{
if (buf && (error_num = spider_db_seek_next(buf, this, search_link_idx,
table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
}
if (
result_list.direct_limit_offset &&
direct_limit_offset_spider->direct_select_offset > 0
) {
// limit-- for each got row
direct_limit_offset_spider->direct_select_offset--;
DBUG_RETURN(0);
}
if (buf && (error_num = spider_db_seek_next(buf, this, search_link_idx,
table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
int ha_spider::pre_rnd_next(
bool use_parallel
) {
DBUG_ENTER("ha_spider::pre_rnd_next");
DBUG_PRINT("info",("spider this=%p", this));
check_pre_call(use_parallel);
if (use_pre_call)
{
store_error_num =
rnd_next_internal(NULL);
DBUG_RETURN(store_error_num);
}
DBUG_RETURN(0);
}
int ha_spider::rnd_next(
uchar *buf
) {
int error_num;
DBUG_ENTER("ha_spider::rnd_next");
DBUG_PRINT("info",("spider this=%p", this));
if (use_pre_call)
{
if (store_error_num)
{
if (store_error_num == HA_ERR_END_OF_FILE)
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(store_error_num);
}
if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
DBUG_RETURN(error_num);
use_pre_call = FALSE;
}
if ((error_num= spider_check_trx_and_get_conn(ha_thd(), this)))
DBUG_RETURN(error_num);
DBUG_RETURN(rnd_next_internal(buf));
}
void ha_spider::position(
const uchar *record
) {
DBUG_ENTER("ha_spider::position");
DBUG_PRINT("info",("spider this=%p", this));
if (pushed_pos)
{
DBUG_PRINT("info",("spider pushed_pos=%p", pushed_pos));
memcpy(ref, pushed_pos, ref_length);
DBUG_VOID_RETURN;
}
if (pt_clone_last_searcher)
{
/* searcher is cloned handler */
DBUG_PRINT("info",("spider cloned handler access"));
pt_clone_last_searcher->position(record);
memcpy(ref, pt_clone_last_searcher->ref, ref_length);
} else {
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher (NULL) to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = NULL;
}
memset(ref, '0', sizeof(SPIDER_POSITION));
DBUG_PRINT("info",("spider self position"));
DBUG_PRINT("info",
("spider current_row_num=%lld", result_list.current_row_num));
if (!wide_handler->position_bitmap_init)
{
if (select_column_mode)
{
spider_db_handler *dbton_hdl =
dbton_handler[result_list.current->dbton_id];
dbton_hdl->copy_minimum_select_bitmap(wide_handler->position_bitmap);
}
wide_handler->position_bitmap_init = TRUE;
}
spider_db_create_position(this, (SPIDER_POSITION *) ref);
}
DBUG_VOID_RETURN;
}
int ha_spider::rnd_pos(
uchar *buf,
uchar *pos
) {
DBUG_ENTER("ha_spider::rnd_pos");
DBUG_PRINT("info",("spider this=%p", this));
#ifndef DBUG_OFF
for (uint roop_count = 0; roop_count < ((table->s->fields + 7) / 8);
roop_count++)
{
DBUG_PRINT("info",("spider roop_count=%d", roop_count));
DBUG_PRINT("info",("spider read_set=%d",
((uchar *) table->read_set->bitmap)[roop_count]));
}
#endif
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
DBUG_PRINT("info",("spider pos=%p", pos));
DBUG_PRINT("info",("spider buf=%p", buf));
pushed_pos_buf = *((SPIDER_POSITION *) pos);
pushed_pos = &pushed_pos_buf;
DBUG_RETURN(spider_db_seek_tmp(buf, &pushed_pos_buf, this, table));
}
int ha_spider::cmp_ref(
const uchar *ref1,
const uchar *ref2
) {
int ret = 0;
DBUG_ENTER("ha_spider::cmp_ref");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider ref1=%p", ref1));
DBUG_PRINT("info",("spider ref2=%p", ref2));
result_list.in_cmp_ref = TRUE;
if (table_share->primary_key < MAX_KEY)
{
uchar table_key[MAX_KEY_LENGTH];
KEY *key_info = &table->key_info[table_share->primary_key];
DBUG_PRINT("info",("spider cmp by primary key"));
rnd_pos(table->record[0], (uchar *) ref2);
key_copy(
table_key,
table->record[0],
key_info,
key_info->key_length);
rnd_pos(table->record[0], (uchar *) ref1);
ret = key_cmp(key_info->key_part, table_key, key_info->key_length);
} else {
Field **field;
my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(table->record[1], table->record[0]);
DBUG_PRINT("info",("spider cmp by all rows"));
rnd_pos(table->record[1], (uchar *) ref2);
rnd_pos(table->record[0], (uchar *) ref1);
for (
field = table->field;
*field;
field++
) {
if ((ret = (*field)->cmp_binary_offset((uint) ptr_diff)))
{
DBUG_PRINT("info",("spider different at %s",
SPIDER_field_name_str(*field)));
break;
}
}
}
result_list.in_cmp_ref = FALSE;
DBUG_PRINT("info",("spider ret=%d", ret));
DBUG_RETURN(ret);
}
float spider_ft_find_relevance(
FT_INFO *handler,
uchar *record,
uint length
) {
DBUG_ENTER("spider_ft_find_relevance");
st_spider_ft_info *info = (st_spider_ft_info*) handler;
DBUG_PRINT("info",("spider info=%p", info));
DBUG_PRINT("info",("spider score=%f", info->score));
DBUG_RETURN(info->score);
}
float spider_ft_get_relevance(
FT_INFO *handler
) {
DBUG_ENTER("spider_ft_get_relevance");
st_spider_ft_info *info = (st_spider_ft_info*) handler;
DBUG_PRINT("info",("spider info=%p", info));
DBUG_PRINT("info",("spider score=%f", info->score));
DBUG_RETURN(info->score);
}
void spider_ft_close_search(
FT_INFO *handler
) {
DBUG_ENTER("spider_ft_close_search");
DBUG_VOID_RETURN;
}
_ft_vft spider_ft_vft = {
NULL, // spider_ft_read_next
spider_ft_find_relevance,
spider_ft_close_search,
spider_ft_get_relevance,
NULL // spider_ft_reinit_search
};
int ha_spider::ft_init()
{
int error_num;
DBUG_ENTER("ha_spider::ft_init");
DBUG_PRINT("info",("spider this=%p", this));
if (store_error_num)
DBUG_RETURN(store_error_num);
if (active_index == MAX_KEY && inited == NONE)
{
st_spider_ft_info *ft_info = ft_first;
ft_init_without_index_init = TRUE;
ft_init_idx = MAX_KEY;
while (TRUE)
{
if (ft_info->used_in_where)
{
ft_init_idx = ft_info->inx;
if ((error_num = index_init(ft_init_idx, FALSE)))
DBUG_RETURN(error_num);
active_index = MAX_KEY;
break;
}
if (ft_info == ft_current)
break;
ft_info = ft_info->next;
}
if (ft_init_idx == MAX_KEY)
{
if ((error_num = rnd_init(TRUE)))
DBUG_RETURN(error_num);
}
} else {
ft_init_idx = active_index;
ft_init_without_index_init = FALSE;
}
ft_init_and_first = TRUE;
DBUG_RETURN(0);
}
void ha_spider::ft_end()
{
DBUG_ENTER("ha_spider::ft_end");
DBUG_PRINT("info",("spider this=%p", this));
if (ft_init_without_index_init)
{
if (ft_init_idx == MAX_KEY)
store_error_num = rnd_end();
else
store_error_num = index_end();
}
ft_init_without_index_init = FALSE;
handler::ft_end();
DBUG_VOID_RETURN;
}
FT_INFO *ha_spider::ft_init_ext(
uint flags,
uint inx,
String *key
) {
st_spider_ft_info *tmp_ft_info;
backup_error_status();
DBUG_ENTER("ha_spider::ft_init_ext");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider flags=%u", flags));
DBUG_PRINT("info",("spider inx=%u", inx));
DBUG_PRINT("info",("spider key=%s", key->c_ptr_safe()));
if (inx == NO_SUCH_KEY)
{
my_error(ER_FT_MATCHING_KEY_NOT_FOUND, MYF(0));
DBUG_RETURN(NULL);
}
tmp_ft_info = ft_current;
if (ft_current)
ft_current = ft_current->next;
else {
ft_current = ft_first;
set_ft_discard_bitmap();
}
if (!ft_current)
{
if (!(ft_current = (st_spider_ft_info *)
spider_malloc(spider_current_trx, SPD_MID_HA_SPIDER_FT_INIT_EXT_1, sizeof(st_spider_ft_info),
MYF(MY_WME | MY_ZEROFILL))))
{
my_error(HA_ERR_OUT_OF_MEM, MYF(0));
DBUG_RETURN(NULL);
}
if (tmp_ft_info)
tmp_ft_info->next = ft_current;
else
ft_first = ft_current;
}
ft_current->please = &spider_ft_vft;
ft_current->file = this;
ft_current->used_in_where = (flags & FT_SORTED);
ft_current->target = ft_count;
ft_current->flags = flags;
ft_current->inx = inx;
ft_current->key = key;
ft_count++;
DBUG_RETURN((FT_INFO *) ft_current);
}
int ha_spider::ft_read_internal(
uchar *buf
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::ft_read_internal");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->trx->thd->killed)
{
my_error(ER_QUERY_INTERRUPTED, MYF(0));
DBUG_RETURN(ER_QUERY_INTERRUPTED);
}
if (ft_init_and_first)
{
ft_init_and_first = FALSE;
spider_db_free_one_result_for_start_next(this);
check_direct_order_limit();
if ((error_num = spider_set_conn_bg_param(this)))
DBUG_RETURN(error_num);
check_select_column(FALSE);
DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
result_list.finish_flg = FALSE;
result_list.record_num = 0;
if (wide_handler->keyread)
result_list.keyread = TRUE;
else
result_list.keyread = FALSE;
if (
(error_num = spider_db_append_select(this)) ||
(error_num = spider_db_append_select_columns(this))
)
DBUG_RETURN(error_num);
uint tmp_active_index = active_index;
active_index = ft_init_idx;
if (
ft_init_idx < MAX_KEY &&
share->key_hint &&
(error_num =
append_hint_after_table_sql_part(SPIDER_SQL_TYPE_SELECT_SQL))
) {
active_index = tmp_active_index;
DBUG_RETURN(error_num);
}
active_index = tmp_active_index;
set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
result_list.desc_flg = FALSE;
result_list.sorted = TRUE;
if (ft_init_idx == MAX_KEY)
result_list.key_info = NULL;
else
result_list.key_info = &table->key_info[ft_init_idx];
result_list.key_order = 0;
result_list.limit_num =
result_list.internal_limit >= result_list.split_read ?
result_list.split_read : result_list.internal_limit;
if ((error_num = spider_db_append_match_where(this)))
DBUG_RETURN(error_num);
if (result_list.direct_order_limit)
{
if ((error_num =
append_key_order_for_direct_order_limit_with_alias_sql_part(NULL, 0,
SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
else if (result_list.direct_aggregate)
{
if ((error_num =
append_group_by_sql_part(NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
DBUG_RETURN(error_num);
}
{
if ((error_num = append_limit_sql_part(
result_list.internal_offset,
result_list.limit_num,
SPIDER_SQL_TYPE_SELECT_SQL)))
{
DBUG_RETURN(error_num);
}
if (
(error_num = append_select_lock_sql_part(
SPIDER_SQL_TYPE_SELECT_SQL))
) {
DBUG_RETURN(error_num);
}
}
int roop_start, roop_end, roop_count, link_ok;
spider_prep_loop(this, &roop_start, &roop_end, &link_ok);
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (result_list.bgs_phase > 0)
{
if (spider_start_bg(this, roop_count, roop_start, link_ok, &error_num))
DBUG_RETURN(error_num);
} else {
if (spider_send_query(this, table, roop_count, link_ok, &error_num))
DBUG_RETURN(error_num);
}
}
}
if (is_clone)
{
DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
pt_clone_source_handler));
pt_clone_source_handler->pt_clone_last_searcher = this;
}
if (buf && (error_num = spider_db_seek_next(buf, this, search_link_idx,
table)))
DBUG_RETURN(check_error_mode_eof(error_num));
DBUG_RETURN(0);
}
int ha_spider::pre_ft_read(
bool use_parallel
) {
DBUG_ENTER("ha_spider::pre_ft_read");
DBUG_PRINT("info",("spider this=%p", this));
check_pre_call(use_parallel);
if (use_pre_call)
{
store_error_num =
ft_read_internal(NULL);
DBUG_RETURN(store_error_num);
}
DBUG_RETURN(0);
}
int ha_spider::ft_read(
uchar *buf
) {
int error_num;
DBUG_ENTER("ha_spider::ft_read");
DBUG_PRINT("info",("spider this=%p", this));
if (use_pre_call)
{
if (store_error_num)
{
if (store_error_num == HA_ERR_END_OF_FILE)
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(store_error_num);
}
if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
DBUG_RETURN(error_num);
use_pre_call = FALSE;
}
DBUG_RETURN(ft_read_internal(buf));
}
int ha_spider::info(
uint flag
) {
int error_num;
THD *thd = ha_thd();
double sts_interval = spider_param_sts_interval(thd, share->sts_interval);
int sts_mode = spider_param_sts_mode(thd, share->sts_mode);
int sts_sync = spider_param_sts_sync(thd, share->sts_sync);
int sts_bg_mode = spider_param_sts_bg_mode(thd, share->sts_bg_mode);
SPIDER_INIT_ERROR_TABLE *spider_init_error_table = NULL;
set_error_mode();
backup_error_status();
DBUG_ENTER("ha_spider::info");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider flag=%x", flag));
auto_inc_temporary = FALSE;
wide_handler->sql_command = thd_sql_command(thd);
if (flag & HA_STATUS_AUTO)
{
if (share->lgtm_tblhnd_share->auto_increment_value)
stats.auto_increment_value =
share->lgtm_tblhnd_share->auto_increment_value;
else {
stats.auto_increment_value = 1;
auto_inc_temporary = TRUE;
}
}
if (
wide_handler->sql_command == SQLCOM_DROP_TABLE ||
wide_handler->sql_command == SQLCOM_ALTER_TABLE
)
DBUG_RETURN(0);
if (flag &
(HA_STATUS_TIME | HA_STATUS_CONST | HA_STATUS_VARIABLE | HA_STATUS_AUTO))
{
time_t tmp_time = (time_t) time((time_t*) 0);
DBUG_PRINT("info",
("spider difftime=%f", difftime(tmp_time, share->sts_get_time)));
DBUG_PRINT("info",
("spider sts_interval=%f", sts_interval));
int tmp_auto_increment_mode = 0;
if (flag & HA_STATUS_AUTO)
{
tmp_auto_increment_mode = spider_param_auto_increment_mode(thd,
share->auto_increment_mode);
info_auto_called = TRUE;
}
if (!share->sts_init)
{
pthread_mutex_lock(&share->sts_mutex);
if (share->sts_init)
pthread_mutex_unlock(&share->sts_mutex);
else {
if ((spider_init_error_table =
spider_get_init_error_table(wide_handler->trx, share, FALSE)))
{
DBUG_PRINT("info",("spider diff=%f",
difftime(tmp_time, spider_init_error_table->init_error_time)));
if (difftime(tmp_time,
spider_init_error_table->init_error_time) <
spider_param_table_init_error_interval())
{
pthread_mutex_unlock(&share->sts_mutex);
if (wide_handler->sql_command == SQLCOM_SHOW_CREATE ||
wide_handler->sql_command == SQLCOM_SHOW_FIELDS)
{
if (thd->is_error())
{
DBUG_PRINT("info", ("spider clear_error"));
thd->clear_error();
}
DBUG_RETURN(0);
}
if (spider_init_error_table->init_error_with_message)
my_message(spider_init_error_table->init_error,
spider_init_error_table->init_error_msg, MYF(0));
DBUG_RETURN(check_error_mode(spider_init_error_table->init_error));
}
}
pthread_mutex_unlock(&share->sts_mutex);
sts_interval = 0;
if (tmp_auto_increment_mode == 1)
sts_sync = 0;
}
}
if (flag & HA_STATUS_AUTO)
{
if (
share->wide_share &&
tmp_auto_increment_mode == 1 &&
!share->lgtm_tblhnd_share->auto_increment_init
) {
sts_interval = 0;
sts_sync = 0;
}
}
if (difftime(tmp_time, share->sts_get_time) >= sts_interval)
{
if (
sts_interval == 0 ||
!pthread_mutex_trylock(&share->sts_mutex)
) {
if (sts_interval == 0 || sts_bg_mode == 0)
{
if (sts_interval == 0)
pthread_mutex_lock(&share->sts_mutex);
if (difftime(tmp_time, share->sts_get_time) >= sts_interval)
{
if ((error_num= spider_check_trx_and_get_conn(ha_thd(), this)))
{
pthread_mutex_unlock(&share->sts_mutex);
if (!share->sts_init)
{
if (
spider_init_error_table ||
(spider_init_error_table =
spider_get_init_error_table(wide_handler->trx,
share, TRUE))
) {
spider_init_error_table->init_error = error_num;
if ((spider_init_error_table->init_error_with_message =
thd->is_error()))
strmov(spider_init_error_table->init_error_msg,
spider_stmt_da_message(thd));
spider_init_error_table->init_error_time =
(time_t) time((time_t*) 0);
}
}
if (wide_handler->sql_command == SQLCOM_SHOW_CREATE ||
wide_handler->sql_command == SQLCOM_SHOW_FIELDS)
{
if (thd->is_error())
{
DBUG_PRINT("info", ("spider clear_error"));
thd->clear_error();
}
DBUG_RETURN(0);
}
DBUG_RETURN(check_error_mode(error_num));
}
if ((error_num = spider_get_sts(share, search_link_idx, tmp_time,
this, sts_interval, sts_mode,
sts_sync,
share->sts_init ? 2 : 1,
flag | (share->sts_init ? 0 : HA_STATUS_AUTO)))
) {
pthread_mutex_unlock(&share->sts_mutex);
error_num= spider_maybe_ping_1(this, search_link_idx, error_num);
if (!share->sts_init)
{
if (
spider_init_error_table ||
(spider_init_error_table =
spider_get_init_error_table(wide_handler->trx,
share, TRUE))
) {
spider_init_error_table->init_error = error_num;
if ((spider_init_error_table->init_error_with_message =
thd->is_error()))
strmov(spider_init_error_table->init_error_msg,
spider_stmt_da_message(thd));
spider_init_error_table->init_error_time =
(time_t) time((time_t*) 0);
}
}
if (wide_handler->sql_command == SQLCOM_SHOW_CREATE ||
wide_handler->sql_command == SQLCOM_SHOW_FIELDS)
{
if (thd->is_error())
{
DBUG_PRINT("info", ("spider clear_error"));
thd->clear_error();
}
DBUG_RETURN(0);
}
DBUG_RETURN(check_error_mode(error_num));
}
}
} else if (sts_bg_mode == 1) {
/* background */
if (!share->bg_sts_init || share->bg_sts_thd_wait)
{
share->bg_sts_thd_wait = FALSE;
share->bg_sts_try_time = tmp_time;
share->bg_sts_interval = sts_interval;
share->bg_sts_mode = sts_mode;
share->bg_sts_sync = sts_sync;
if (!share->bg_sts_init)
{
if ((error_num = spider_create_sts_thread(share)))
{
pthread_mutex_unlock(&share->sts_mutex);
if (wide_handler->sql_command == SQLCOM_SHOW_CREATE ||
wide_handler->sql_command == SQLCOM_SHOW_FIELDS)
{
if (thd->is_error())
{
DBUG_PRINT("info", ("spider clear_error"));
thd->clear_error();
}
DBUG_RETURN(0);
}
DBUG_RETURN(error_num);
}
} else
pthread_cond_signal(&share->bg_sts_cond);
}
} else {
share->bg_sts_try_time = tmp_time;
share->bg_sts_interval = sts_interval;
share->bg_sts_mode = sts_mode;
share->bg_sts_sync = sts_sync;
spider_table_add_share_to_sts_thread(share);
}
pthread_mutex_unlock(&share->sts_mutex);
}
}
if (flag & HA_STATUS_CONST)
{
if ((error_num = check_crd()))
{
if (wide_handler->sql_command == SQLCOM_SHOW_CREATE ||
wide_handler->sql_command == SQLCOM_SHOW_FIELDS)
{
if (thd->is_error())
{
DBUG_PRINT("info", ("spider clear_error"));
thd->clear_error();
}
DBUG_RETURN(0);
}
DBUG_RETURN(error_num);
}
spider_db_set_cardinarity(this, table);
}
if (flag & HA_STATUS_TIME)
stats.update_time = (ulong) share->stat.update_time;
if (flag & (HA_STATUS_CONST | HA_STATUS_VARIABLE))
{
stats.max_data_file_length = share->stat.max_data_file_length;
stats.create_time = share->stat.create_time;
stats.block_size = spider_param_block_size(thd);
}
if (flag & HA_STATUS_VARIABLE)
{
stats.data_file_length = share->stat.data_file_length;
stats.index_file_length = share->stat.index_file_length;
stats.records = share->stat.records;
stats.mean_rec_length = share->stat.mean_rec_length;
stats.check_time = share->stat.check_time;
if (stats.records <= 1 /* && (flag & HA_STATUS_NO_LOCK) */ )
stats.records = 2;
stats.checksum = share->stat.checksum;
stats.checksum_null = share->stat.checksum_null;
}
if (flag & HA_STATUS_AUTO)
{
auto_inc_temporary = FALSE;
if (share->wide_share && table->next_number_field)
{
ulonglong first_value, nb_reserved_values;
if (
tmp_auto_increment_mode == 0 &&
!(
table->next_number_field->val_int() != 0 ||
(table->auto_increment_field_not_null &&
thd->variables.sql_mode & MODE_NO_AUTO_VALUE_ON_ZERO)
)
) {
get_auto_increment(0, 0, 0, &first_value, &nb_reserved_values);
share->lgtm_tblhnd_share->auto_increment_value = first_value;
share->lgtm_tblhnd_share->auto_increment_lclval = first_value;
share->lgtm_tblhnd_share->auto_increment_init = TRUE;
DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
DBUG_PRINT("info",("spider auto_increment_value=%llu",
share->lgtm_tblhnd_share->auto_increment_value));
stats.auto_increment_value = first_value;
} else if (tmp_auto_increment_mode == 1 &&
!share->lgtm_tblhnd_share->auto_increment_init)
{
DBUG_PRINT("info",("spider auto_increment_value=%llu",
share->lgtm_tblhnd_share->auto_increment_value));
share->lgtm_tblhnd_share->auto_increment_lclval =
share->lgtm_tblhnd_share->auto_increment_value;
share->lgtm_tblhnd_share->auto_increment_init = TRUE;
stats.auto_increment_value =
share->lgtm_tblhnd_share->auto_increment_value;
} else {
DBUG_PRINT("info",("spider auto_increment_value=%llu",
share->lgtm_tblhnd_share->auto_increment_value));
stats.auto_increment_value =
share->lgtm_tblhnd_share->auto_increment_value;
}
} else {
stats.auto_increment_value =
share->lgtm_tblhnd_share->auto_increment_value;
}
}
}
if (flag & HA_STATUS_ERRKEY)
errkey = dup_key_idx;
DBUG_RETURN(0);
}
ha_rows ha_spider::records_in_range(
uint inx,
const key_range *start_key,
const key_range *end_key,
page_range *pages)
{
int error_num;
THD *thd = ha_thd();
double crd_interval = spider_param_crd_interval(thd, share->crd_interval);
int crd_mode = spider_param_crd_mode(thd, share->crd_mode);
int crd_type = spider_param_crd_type(thd, share->crd_type);
int crd_sync = spider_param_crd_sync(thd, share->crd_sync);
int crd_bg_mode = spider_param_crd_bg_mode(thd, share->crd_bg_mode);
SPIDER_INIT_ERROR_TABLE *spider_init_error_table = NULL;
uint dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::records_in_range");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider inx=%u", inx));
time_t tmp_time = (time_t) time((time_t*) 0);
if (!share->crd_init)
{
pthread_mutex_lock(&share->crd_mutex);
if (share->crd_init)
pthread_mutex_unlock(&share->crd_mutex);
else {
if ((spider_init_error_table =
spider_get_init_error_table(wide_handler->trx, share, FALSE)))
{
DBUG_PRINT("info",("spider diff=%f",
difftime(tmp_time, spider_init_error_table->init_error_time)));
if (difftime(tmp_time,
spider_init_error_table->init_error_time) <
spider_param_table_init_error_interval())
{
pthread_mutex_unlock(&share->crd_mutex);
if (spider_init_error_table->init_error_with_message)
my_message(spider_init_error_table->init_error,
spider_init_error_table->init_error_msg, MYF(0));
if (check_error_mode(spider_init_error_table->init_error))
my_errno = spider_init_error_table->init_error;
DBUG_RETURN(HA_POS_ERROR);
}
}
pthread_mutex_unlock(&share->crd_mutex);
if (crd_mode == 3)
crd_mode = 1;
crd_interval = 0;
}
}
dbton_id = share->sql_dbton_ids[search_link_idx];
dbton_hdl = dbton_handler[dbton_id];
crd_mode = dbton_hdl->crd_mode_exchange(crd_mode);
/* This assertion simply demonstrates that the
static_key_cardinality field is unused. It will be deprecated
(MDEV-28861) and removed (MDEV-31146). */
DBUG_ASSERT(share->static_key_cardinality[inx] == -1);
if (crd_mode == 1 || crd_mode == 2)
{
DBUG_PRINT("info", ("spider static_key_cardinality[%u]=%lld", inx,
share->static_key_cardinality[inx]));
DBUG_PRINT("info",
("spider difftime=%f", difftime(tmp_time, share->crd_get_time)));
DBUG_PRINT("info",
("spider crd_interval=%f", crd_interval));
if (
share->static_key_cardinality[inx] == -1 &&
difftime(tmp_time, share->crd_get_time) >= crd_interval
) {
if (!dml_inited)
{
if (unlikely((error_num = dml_init())))
{
if (check_error_mode(error_num))
my_errno = error_num;
DBUG_RETURN(HA_POS_ERROR);
}
}
if (
crd_interval == 0 ||
!pthread_mutex_trylock(&share->crd_mutex)
) {
if (crd_interval == 0 || crd_bg_mode == 0)
{
if (crd_interval == 0)
pthread_mutex_lock(&share->crd_mutex);
if (difftime(tmp_time, share->crd_get_time) >= crd_interval)
{
if ((error_num = spider_get_crd(share, search_link_idx, tmp_time,
this, table, crd_interval, crd_mode,
crd_sync,
share->crd_init ? 2 : 1)))
{
pthread_mutex_unlock(&share->crd_mutex);
error_num= spider_maybe_ping_1(this, search_link_idx, error_num);
if (!share->crd_init)
{
if (
spider_init_error_table ||
(spider_init_error_table =
spider_get_init_error_table(wide_handler->trx,
share, TRUE))
) {
spider_init_error_table->init_error = error_num;
/*
if (!thd->is_error())
my_error(error_num, MYF(0), "");
*/
if ((spider_init_error_table->init_error_with_message =
thd->is_error()))
strmov(spider_init_error_table->init_error_msg,
spider_stmt_da_message(thd));
spider_init_error_table->init_error_time =
(time_t) time((time_t*) 0);
}
}
if (check_error_mode(error_num))
my_errno = error_num;
DBUG_RETURN(HA_POS_ERROR);
}
}
} else if (crd_bg_mode == 1) {
/* background */
if (!share->bg_crd_init || share->bg_crd_thd_wait)
{
share->bg_crd_thd_wait = FALSE;
share->bg_crd_try_time = tmp_time;
share->bg_crd_interval = crd_interval;
share->bg_crd_mode = crd_mode;
share->bg_crd_sync = crd_sync;
if (!share->bg_crd_init)
{
if ((error_num = spider_create_crd_thread(share)))
{
pthread_mutex_unlock(&share->crd_mutex);
my_errno = error_num;
DBUG_RETURN(HA_POS_ERROR);
}
} else
pthread_cond_signal(&share->bg_crd_cond);
}
} else {
share->bg_crd_try_time = tmp_time;
share->bg_crd_interval = crd_interval;
share->bg_crd_mode = crd_mode;
share->bg_crd_sync = crd_sync;
spider_table_add_share_to_crd_thread(share);
}
pthread_mutex_unlock(&share->crd_mutex);
}
}
KEY *key_info = &table->key_info[inx];
key_part_map full_key_part_map =
make_prev_keypart_map(spider_user_defined_key_parts(key_info));
key_part_map start_key_part_map;
key_part_map end_key_part_map;
key_part_map tgt_key_part_map;
KEY_PART_INFO *key_part;
Field *field = NULL;
double rows = (double) share->stat.records;
double weight, rate;
DBUG_PRINT("info",("spider rows1=%f", rows));
if (start_key)
start_key_part_map = start_key->keypart_map & full_key_part_map;
else
start_key_part_map = 0;
if (end_key)
end_key_part_map = end_key->keypart_map & full_key_part_map;
else
end_key_part_map = 0;
if (!start_key_part_map && !end_key_part_map)
{
DBUG_RETURN(HA_POS_ERROR);
}
else if (start_key_part_map >= end_key_part_map)
{
tgt_key_part_map = start_key_part_map;
} else {
tgt_key_part_map = end_key_part_map;
}
if (crd_type == 0)
weight = spider_param_crd_weight(thd, share->crd_weight);
else
weight = 1;
if (share->static_key_cardinality[inx] == -1)
{
for (
key_part = key_info->key_part;
tgt_key_part_map > 1;
tgt_key_part_map >>= 1,
key_part++
) {
field = key_part->field;
DBUG_PRINT("info",
("spider field_index=%u",
field->field_index));
DBUG_PRINT("info",
("spider cardinality=%lld", share->cardinality[field->field_index]));
if (share->cardinality[field->field_index] == -1)
{
DBUG_PRINT("info",
("spider uninitialized column cardinality"));
DBUG_RETURN(HA_POS_ERROR);
}
if ((rate =
((double) share->cardinality[field->field_index]) / weight) >= 1
) {
if ((rows = rows / rate) < 2)
{
DBUG_PRINT("info",("spider rows2=%f then ret 2", rows));
DBUG_RETURN((ha_rows) 2);
}
}
if (crd_type == 1)
weight += spider_param_crd_weight(thd, share->crd_weight);
else if (crd_type == 2)
weight *= spider_param_crd_weight(thd, share->crd_weight);
}
field = key_part->field;
DBUG_PRINT("info",
("spider field_index=%u",
field->field_index));
DBUG_PRINT("info",
("spider cardinality=%lld", share->cardinality[field->field_index]));
if (share->cardinality[field->field_index] == -1)
{
DBUG_PRINT("info",
("spider uninitialized column cardinality"));
DBUG_RETURN(HA_POS_ERROR);
}
}
if (
start_key_part_map >= end_key_part_map &&
start_key->flag == HA_READ_KEY_EXACT
) {
if (share->static_key_cardinality[inx] == -1)
{
if ((rate =
((double) share->cardinality[field->field_index]) / weight) >= 1)
rows = rows / rate;
} else {
rate = ((double) share->static_key_cardinality[inx]);
rows = rows / rate;
}
} else if (start_key_part_map == end_key_part_map)
{
if (share->static_key_cardinality[inx] == -1)
{
if ((rate =
((double) share->cardinality[field->field_index]) / weight / 4) >= 1)
rows = rows / rate;
} else {
if ((rate =
((double) share->static_key_cardinality[inx]) / 4) >= 1)
rows = rows / rate;
}
} else {
if (share->static_key_cardinality[inx] == -1)
{
if ((rate =
((double) share->cardinality[field->field_index]) / weight / 16) >= 1)
rows = rows / rate;
} else {
if ((rate =
((double) share->static_key_cardinality[inx]) / 16) >= 1)
rows = rows / rate;
}
}
if (rows < 2)
{
DBUG_PRINT("info",("spider rows3=%f then ret 2", rows));
DBUG_RETURN((ha_rows) 2);
}
DBUG_PRINT("info",("spider rows4=%f", rows));
DBUG_RETURN((ha_rows) rows);
} else if (crd_mode == 3)
{
if (!dml_inited)
{
if (unlikely((error_num = dml_init())))
{
if (check_error_mode(error_num))
my_errno = error_num;
DBUG_RETURN(HA_POS_ERROR);
}
}
result_list.key_info = &table->key_info[inx];
DBUG_RETURN(spider_db_explain_select(start_key, end_key, this,
search_link_idx));
}
DBUG_RETURN((ha_rows) spider_param_crd_weight(thd, share->crd_weight));
}
int ha_spider::check_crd()
{
int error_num;
THD *thd = ha_thd();
double crd_interval = spider_param_crd_interval(thd, share->crd_interval);
int crd_mode = spider_param_crd_mode(thd, share->crd_mode);
int crd_sync = spider_param_crd_sync(thd, share->crd_sync);
int crd_bg_mode = spider_param_crd_bg_mode(thd, share->crd_bg_mode);
SPIDER_INIT_ERROR_TABLE *spider_init_error_table = NULL;
uint dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::check_crd");
DBUG_PRINT("info",("spider this=%p", this));
time_t tmp_time = (time_t) time((time_t*) 0);
if (!share->crd_init)
{
pthread_mutex_lock(&share->crd_mutex);
if (share->crd_init)
pthread_mutex_unlock(&share->crd_mutex);
else {
if ((spider_init_error_table =
spider_get_init_error_table(wide_handler->trx, share, FALSE)))
{
DBUG_PRINT("info",("spider diff=%f",
difftime(tmp_time, spider_init_error_table->init_error_time)));
if (difftime(tmp_time,
spider_init_error_table->init_error_time) <
spider_param_table_init_error_interval())
{
pthread_mutex_unlock(&share->crd_mutex);
if (spider_init_error_table->init_error_with_message)
my_message(spider_init_error_table->init_error,
spider_init_error_table->init_error_msg, MYF(0));
DBUG_RETURN(check_error_mode(spider_init_error_table->init_error));
}
}
pthread_mutex_unlock(&share->crd_mutex);
crd_interval = 0;
}
}
if (crd_mode == 3)
crd_mode = 1;
if ((error_num= spider_check_trx_and_get_conn(ha_thd(), this)))
{
DBUG_RETURN(check_error_mode(error_num));
}
dbton_id = share->sql_dbton_ids[search_link_idx];
dbton_hdl = dbton_handler[dbton_id];
crd_mode = dbton_hdl->crd_mode_exchange(crd_mode);
DBUG_PRINT("info",
("spider difftime=%f", difftime(tmp_time, share->crd_get_time)));
DBUG_PRINT("info",
("spider crd_interval=%f", crd_interval));
if (difftime(tmp_time, share->crd_get_time) >= crd_interval)
{
if (
crd_interval == 0 ||
!pthread_mutex_trylock(&share->crd_mutex)
) {
if (crd_interval == 0 || crd_bg_mode == 0)
{
if (crd_interval == 0)
pthread_mutex_lock(&share->crd_mutex);
if (difftime(tmp_time, share->crd_get_time) >= crd_interval)
{
if ((error_num = spider_get_crd(share, search_link_idx, tmp_time,
this, table, crd_interval, crd_mode,
crd_sync,
share->crd_init ? 2 : 1)))
{
pthread_mutex_unlock(&share->crd_mutex);
error_num= spider_maybe_ping_1(this, search_link_idx, error_num);
if (!share->crd_init)
{
if (
spider_init_error_table ||
(spider_init_error_table =
spider_get_init_error_table(wide_handler->trx, share, TRUE))
) {
spider_init_error_table->init_error = error_num;
if ((spider_init_error_table->init_error_with_message =
thd->is_error()))
strmov(spider_init_error_table->init_error_msg,
spider_stmt_da_message(thd));
spider_init_error_table->init_error_time =
(time_t) time((time_t*) 0);
}
}
DBUG_RETURN(check_error_mode(error_num));
}
}
} else if (crd_bg_mode == 1) {
/* background */
if (!share->bg_crd_init || share->bg_crd_thd_wait)
{
share->bg_crd_thd_wait = FALSE;
share->bg_crd_try_time = tmp_time;
share->bg_crd_interval = crd_interval;
share->bg_crd_mode = crd_mode;
share->bg_crd_sync = crd_sync;
if (!share->bg_crd_init)
{
if ((error_num = spider_create_crd_thread(share)))
{
pthread_mutex_unlock(&share->crd_mutex);
DBUG_RETURN(error_num);
}
} else
pthread_cond_signal(&share->bg_crd_cond);
}
} else {
share->bg_crd_try_time = tmp_time;
share->bg_crd_interval = crd_interval;
share->bg_crd_mode = crd_mode;
share->bg_crd_sync = crd_sync;
spider_table_add_share_to_crd_thread(share);
}
pthread_mutex_unlock(&share->crd_mutex);
}
}
DBUG_RETURN(0);
}
int ha_spider::pre_records()
{
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::pre_records");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->sql_command == SQLCOM_ALTER_TABLE)
{
DBUG_RETURN(0);
}
if (!(share->additional_table_flags & HA_HAS_RECORDS))
{
DBUG_RETURN(0);
}
THD *thd = wide_handler->trx->thd;
if (
spider_param_sync_autocommit(thd) &&
(!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
) {
result_list.casual_read[search_link_idx] =
spider_param_casual_read(thd, share->casual_read);
}
if ((error_num = spider_db_simple_action(SPIDER_SIMPLE_RECORDS, this,
search_link_idx, TRUE)))
{
DBUG_RETURN(check_error_mode(error_num));
}
use_pre_action = TRUE;
DBUG_RETURN(0);
}
ha_rows ha_spider::records()
{
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::records");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler->sql_command == SQLCOM_ALTER_TABLE)
{
use_pre_action = FALSE;
DBUG_RETURN(0);
}
if (!(share->additional_table_flags & HA_HAS_RECORDS) && !this->result_list.direct_limit_offset)
{
DBUG_RETURN(handler::records());
}
if (!use_pre_action && !this->result_list.direct_limit_offset)
{
THD *thd = wide_handler->trx->thd;
if (
spider_param_sync_autocommit(thd) &&
(!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
) {
result_list.casual_read[search_link_idx] =
spider_param_casual_read(thd, share->casual_read);
}
}
if ((error_num = spider_db_simple_action(SPIDER_SIMPLE_RECORDS, this,
search_link_idx, FALSE)))
{
use_pre_action = FALSE;
check_error_mode(error_num);
DBUG_RETURN(HA_POS_ERROR);
}
use_pre_action = FALSE;
share->stat.records = table_rows;
DBUG_RETURN(table_rows);
}
int ha_spider::pre_calculate_checksum()
{
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::pre_calculate_checksum");
DBUG_PRINT("info",("spider this=%p", this));
THD *thd = wide_handler->trx->thd;
if (!dml_inited)
{
if (unlikely((error_num = dml_init())))
{
DBUG_RETURN(error_num);
}
}
if (
spider_param_sync_autocommit(thd) &&
(!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
) {
result_list.casual_read[search_link_idx] =
spider_param_casual_read(thd, share->casual_read);
}
action_flags = T_EXTEND;
if ((error_num = spider_db_simple_action(SPIDER_SIMPLE_CHECKSUM_TABLE, this,
search_link_idx, TRUE)))
{
DBUG_RETURN(check_error_mode(error_num));
}
use_pre_action = TRUE;
DBUG_RETURN(0);
}
int ha_spider::calculate_checksum()
{
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::calculate_checksum");
DBUG_PRINT("info",("spider this=%p", this));
if (!dml_inited)
{
if (unlikely((error_num = dml_init())))
{
DBUG_RETURN(error_num);
}
}
if (!use_pre_action && !this->result_list.direct_limit_offset)
{
THD *thd = wide_handler->trx->thd;
if (
spider_param_sync_autocommit(thd) &&
(!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
) {
result_list.casual_read[search_link_idx] =
spider_param_casual_read(thd, share->casual_read);
}
}
action_flags = T_EXTEND;
if ((error_num = spider_db_simple_action(SPIDER_SIMPLE_CHECKSUM_TABLE, this,
search_link_idx, FALSE)))
{
use_pre_action = FALSE;
DBUG_RETURN(check_error_mode(error_num));
}
use_pre_action = FALSE;
if (checksum_null)
{
share->stat.checksum_null = TRUE;
share->stat.checksum = 0;
stats.checksum_null = TRUE;
stats.checksum = 0;
} else {
share->stat.checksum_null = FALSE;
share->stat.checksum = (ha_checksum) checksum_val;
stats.checksum_null = FALSE;
stats.checksum = (ha_checksum) checksum_val;
}
DBUG_RETURN(0);
}
const char *ha_spider::table_type() const
{
DBUG_ENTER("ha_spider::table_type");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN("SPIDER");
}
ulonglong ha_spider::table_flags() const
{
DBUG_ENTER("ha_spider::table_flags");
DBUG_PRINT("info",("spider this=%p", this));
ulonglong flags =
HA_REC_NOT_IN_SEQ |
HA_CAN_GEOMETRY |
HA_NULL_IN_KEY |
HA_CAN_INDEX_BLOBS |
HA_AUTO_PART_KEY |
HA_CAN_RTREEKEYS |
HA_PRIMARY_KEY_REQUIRED_FOR_DELETE |
/* HA_NO_PREFIX_CHAR_KEYS | */
HA_CAN_FULLTEXT |
HA_CAN_SQL_HANDLER |
HA_FILE_BASED |
HA_CAN_BIT_FIELD |
HA_NO_COPY_ON_ALTER |
HA_BINLOG_ROW_CAPABLE |
HA_BINLOG_STMT_CAPABLE |
HA_PARTIAL_COLUMN_READ |
#ifdef HA_SLOW_CMP_REF
HA_SLOW_CMP_REF |
#endif
#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
HA_CAN_TABLE_CONDITION_PUSHDOWN |
#endif
SPIDER_CAN_BG_SEARCH |
SPIDER_CAN_BG_INSERT |
SPIDER_CAN_BG_UPDATE |
#ifdef HA_CAN_DIRECT_UPDATE_AND_DELETE
HA_CAN_DIRECT_UPDATE_AND_DELETE |
#endif
#ifdef HA_CAN_FORCE_BULK_UPDATE
(share && share->force_bulk_update ? HA_CAN_FORCE_BULK_UPDATE : 0) |
#endif
#ifdef HA_CAN_FORCE_BULK_DELETE
(share && share->force_bulk_delete ? HA_CAN_FORCE_BULK_DELETE : 0) |
#endif
(share ? share->additional_table_flags : 0)
;
DBUG_RETURN(flags);
}
ulong ha_spider::table_flags_for_partition()
{
DBUG_ENTER("ha_spider::table_flags_for_partition");
DBUG_PRINT("info",("spider this=%p", this));
ulong flags =
#ifdef HA_PT_CALL_AT_ONCE_STORE_LOCK
HA_PT_CALL_AT_ONCE_STORE_LOCK |
#endif
#ifdef HA_PT_CALL_AT_ONCE_EXTERNAL_LOCK
HA_PT_CALL_AT_ONCE_EXTERNAL_LOCK |
#endif
#ifdef HA_PT_CALL_AT_ONCE_START_STMT
HA_PT_CALL_AT_ONCE_START_STMT |
#endif
#ifdef HA_PT_CALL_AT_ONCE_EXTRA
HA_PT_CALL_AT_ONCE_EXTRA |
#endif
#ifdef HA_PT_CALL_AT_ONCE_COND_PUSH
HA_PT_CALL_AT_ONCE_COND_PUSH |
#endif
#ifdef HA_PT_CALL_AT_ONCE_INFO_PUSH
HA_PT_CALL_AT_ONCE_INFO_PUSH |
#endif
#ifdef HA_PT_CALL_AT_ONCE_TOP_TABLE
HA_PT_CALL_AT_ONCE_TOP_TABLE |
#endif
0;
DBUG_RETURN(flags);
}
const char *ha_spider::index_type(
uint key_number
) {
KEY *key_info = &table->key_info[key_number];
DBUG_ENTER("ha_spider::index_type");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider flags=%ld", key_info->flags));
DBUG_PRINT("info",("spider algorithm=%d", key_info->algorithm));
DBUG_RETURN(
(key_info->algorithm == HA_KEY_ALG_FULLTEXT) ? "FULLTEXT" :
(key_info->algorithm == HA_KEY_ALG_RTREE) ? "SPATIAL" :
(key_info->algorithm == HA_KEY_ALG_HASH) ? "HASH" :
(key_info->algorithm == HA_KEY_ALG_RTREE) ? "RTREE" :
"BTREE"
);
}
ulong ha_spider::index_flags(
uint idx,
uint part,
bool all_parts
) const {
DBUG_ENTER("ha_spider::index_flags");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(
(table_share->key_info[idx].algorithm == HA_KEY_ALG_FULLTEXT) ?
0 :
(table_share->key_info[idx].algorithm == HA_KEY_ALG_HASH) ?
HA_ONLY_WHOLE_INDEX | HA_KEY_SCAN_NOT_ROR :
HA_READ_NEXT | HA_READ_PREV | HA_READ_ORDER | HA_READ_RANGE |
HA_KEYREAD_ONLY
);
}
uint ha_spider::max_supported_record_length() const
{
DBUG_ENTER("ha_spider::max_supported_record_length");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(HA_MAX_REC_LENGTH);
}
uint ha_spider::max_supported_keys() const
{
DBUG_ENTER("ha_spider::max_supported_keys");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(MAX_KEY);
}
uint ha_spider::max_supported_key_parts() const
{
DBUG_ENTER("ha_spider::max_supported_key_parts");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(MAX_REF_PARTS);
}
uint ha_spider::max_supported_key_length() const
{
DBUG_ENTER("ha_spider::max_supported_key_length");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(SPIDER_MAX_KEY_LENGTH);
}
uint ha_spider::max_supported_key_part_length() const
{
DBUG_ENTER("ha_spider::max_supported_key_part_length");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(SPIDER_MAX_KEY_LENGTH);
}
uint8 ha_spider::table_cache_type()
{
DBUG_ENTER("ha_spider::table_cache_type");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(HA_CACHE_TBL_NOCACHE);
}
bool ha_spider::need_info_for_auto_inc()
{
THD *thd = ha_thd();
DBUG_ENTER("ha_spider::need_info_for_auto_inc");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider return=%s", (
!share->lgtm_tblhnd_share->auto_increment_init ||
(
!spider_param_auto_increment_mode(thd, share->auto_increment_mode) &&
!info_auto_called
)
) ? "TRUE" : "FALSE"));
DBUG_RETURN((
!share->lgtm_tblhnd_share->auto_increment_init ||
(
!spider_param_auto_increment_mode(thd, share->auto_increment_mode) &&
!info_auto_called
)
));
}
bool ha_spider::can_use_for_auto_inc_init()
{
DBUG_ENTER("ha_spider::can_use_for_auto_inc_init");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider return=%s", (
!auto_inc_temporary
) ? "TRUE" : "FALSE"));
DBUG_RETURN((
!auto_inc_temporary
));
}
int ha_spider::update_auto_increment()
{
int error_num;
THD *thd = ha_thd();
int auto_increment_mode = spider_param_auto_increment_mode(thd,
share->auto_increment_mode);
bool lock_here = FALSE;
backup_error_status();
DBUG_ENTER("ha_spider::update_auto_increment");
DBUG_PRINT("info",("spider this=%p", this));
force_auto_increment = TRUE;
DBUG_PRINT("info",("spider auto_increment_mode=%d",
auto_increment_mode));
DBUG_PRINT("info",("spider next_number_field=%lld",
table->next_number_field->val_int()));
if (
auto_increment_mode == 1 &&
!(
table->next_number_field->val_int() != 0 ||
(table->auto_increment_field_not_null &&
thd->variables.sql_mode & MODE_NO_AUTO_VALUE_ON_ZERO)
)
) {
lock_here = TRUE;
pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
next_insert_id = share->lgtm_tblhnd_share->auto_increment_value;
DBUG_PRINT("info",("spider auto_increment_value=%llu",
share->lgtm_tblhnd_share->auto_increment_value));
}
if ((error_num = handler::update_auto_increment()))
{
if (lock_here)
pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
DBUG_RETURN(check_error_mode(error_num));
}
if (lock_here)
{
if (insert_id_for_cur_row)
{
share->lgtm_tblhnd_share->auto_increment_lclval =
insert_id_for_cur_row + 1;
share->lgtm_tblhnd_share->auto_increment_value = next_insert_id;
DBUG_PRINT("info",("spider after auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
DBUG_PRINT("info",("spider auto_increment_value=%llu",
share->lgtm_tblhnd_share->auto_increment_value));
}
pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
}
if (!store_last_insert_id)
{
store_last_insert_id = table->next_number_field->val_int();
}
DBUG_RETURN(0);
}
void ha_spider::get_auto_increment(
ulonglong offset,
ulonglong increment,
ulonglong nb_desired_values,
ulonglong *first_value,
ulonglong *nb_reserved_values
) {
THD *thd = ha_thd();
int auto_increment_mode = spider_param_auto_increment_mode(thd,
share->auto_increment_mode);
bool rev= table->key_info[table->s->next_number_index].
key_part[table->s->next_number_keypart].key_part_flag &
HA_REVERSE_SORT;
DBUG_ENTER("ha_spider::get_auto_increment");
DBUG_PRINT("info",("spider this=%p", this));
*nb_reserved_values = ULONGLONG_MAX;
if (auto_increment_mode == 0)
{
/* strict mode */
int error_num;
extra(HA_EXTRA_KEYREAD);
if (index_init(table_share->next_number_index, TRUE))
goto error_index_init;
result_list.internal_limit = 1;
if (table_share->next_number_keypart)
{
uchar key[MAX_KEY_LENGTH];
key_copy(key, table->record[0],
&table->key_info[table_share->next_number_index],
table_share->next_number_key_offset);
error_num = index_read_last_map(table->record[1], key,
make_prev_keypart_map(table_share->next_number_keypart));
} else if (rev)
error_num = index_first(table->record[1]);
else
error_num = index_last(table->record[1]);
if (error_num)
*first_value = 1;
else
*first_value = ((ulonglong) table->next_number_field->
val_int_offset(table_share->rec_buff_length) + 1);
index_end();
extra(HA_EXTRA_NO_KEYREAD);
DBUG_VOID_RETURN;
error_index_init:
extra(HA_EXTRA_NO_KEYREAD);
*first_value = ~(ulonglong)0;
DBUG_VOID_RETURN;
} else {
if (auto_increment_mode != 1)
pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
DBUG_PRINT("info",("spider before auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
*first_value = share->lgtm_tblhnd_share->auto_increment_lclval;
share->lgtm_tblhnd_share->auto_increment_lclval +=
nb_desired_values * increment;
DBUG_PRINT("info",("spider after auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
if (auto_increment_mode != 1)
pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
}
DBUG_VOID_RETURN;
}
int ha_spider::reset_auto_increment(
ulonglong value
) {
DBUG_ENTER("ha_spider::reset_auto_increment");
DBUG_PRINT("info",("spider this=%p", this));
if (table->next_number_field)
{
pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
share->lgtm_tblhnd_share->auto_increment_lclval = value;
share->lgtm_tblhnd_share->auto_increment_init = TRUE;
DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
}
DBUG_RETURN(0);
}
void ha_spider::release_auto_increment()
{
DBUG_ENTER("ha_spider::release_auto_increment");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_VOID_RETURN;
}
void ha_spider::start_bulk_insert(
ha_rows rows,
uint flags
)
{
DBUG_ENTER("ha_spider::start_bulk_insert");
DBUG_PRINT("info",("spider this=%p", this));
bulk_insert = TRUE;
bulk_size = -1;
store_last_insert_id = 0;
bzero(&copy_info, sizeof(copy_info));
DBUG_VOID_RETURN;
}
int ha_spider::end_bulk_insert()
{
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::end_bulk_insert");
DBUG_PRINT("info",("spider this=%p", this));
bulk_insert = FALSE;
if (bulk_size == -1)
DBUG_RETURN(0);
if ((error_num = spider_db_bulk_insert(this, table, &copy_info, TRUE)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
int ha_spider::write_row(
const uchar *buf
) {
int error_num;
THD *thd = ha_thd();
int auto_increment_mode = spider_param_auto_increment_mode(thd,
share->auto_increment_mode);
bool auto_increment_flag =
table->next_number_field && buf == table->record[0];
backup_error_status();
DBUG_ENTER("ha_spider::write_row");
DBUG_PRINT("info",("spider this=%p", this));
if (spider_param_read_only_mode(thd, share->read_only_mode))
{
my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
table_share->db.str, table_share->table_name.str);
DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
}
if (!dml_inited)
{
if (unlikely((error_num = dml_init())))
{
DBUG_RETURN(error_num);
}
}
#ifndef SPIDER_WITHOUT_HA_STATISTIC_INCREMENT
ha_statistic_increment(&SSV::ha_write_count);
#endif
if (!bulk_insert)
store_last_insert_id = 0;
if (auto_increment_flag)
{
if (auto_increment_mode == 3)
{
if (!table->auto_increment_field_not_null)
{
#ifndef DBUG_OFF
MY_BITMAP *tmp_map =
dbug_tmp_use_all_columns(table, &table->write_set);
#endif
table->next_number_field->store((longlong) 0, TRUE);
#ifndef DBUG_OFF
dbug_tmp_restore_column_map(&table->write_set, tmp_map);
#endif
force_auto_increment = FALSE;
table->file->insert_id_for_cur_row = 0;
}
} else if (auto_increment_mode == 2)
{
#ifndef DBUG_OFF
MY_BITMAP *tmp_map =
dbug_tmp_use_all_columns(table, &table->write_set);
#endif
table->next_number_field->store((longlong) 0, TRUE);
table->auto_increment_field_not_null = FALSE;
#ifndef DBUG_OFF
dbug_tmp_restore_column_map(&table->write_set, tmp_map);
#endif
force_auto_increment = FALSE;
table->file->insert_id_for_cur_row = 0;
} else {
if (!share->lgtm_tblhnd_share->auto_increment_init)
{
pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
if (!share->lgtm_tblhnd_share->auto_increment_init)
{
if ((error_num= info(HA_STATUS_AUTO)))
{
pthread_mutex_unlock(
&share->lgtm_tblhnd_share->auto_increment_mutex);
DBUG_RETURN(error_num);
}
share->lgtm_tblhnd_share->auto_increment_lclval =
stats.auto_increment_value;
share->lgtm_tblhnd_share->auto_increment_init = TRUE;
DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
}
pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
}
if ((error_num = update_auto_increment()))
DBUG_RETURN(error_num);
}
}
if (!bulk_insert || bulk_size < 0)
{
direct_dup_insert =
spider_param_direct_dup_insert(wide_handler->trx->thd,
share->direct_dup_insert);
DBUG_PRINT("info",("spider direct_dup_insert=%d", direct_dup_insert));
if ((error_num = spider_db_bulk_insert_init(this, table)))
DBUG_RETURN(check_error_mode(error_num));
if (bulk_insert)
bulk_size =
(wide_handler->insert_with_update &&
!result_list.insert_dup_update_pushdown) ||
(!direct_dup_insert && wide_handler->ignore_dup_key) ?
0 : spider_param_bulk_size(wide_handler->trx->thd, share->bulk_size);
else
bulk_size = 0;
}
if ((error_num = spider_db_bulk_insert(this, table, &copy_info, FALSE)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
void ha_spider::direct_update_init(
THD *thd,
bool hs_request
) {
DBUG_ENTER("ha_spider::direct_update_init");
DBUG_PRINT("info",("spider this=%p", this));
do_direct_update = TRUE;
DBUG_VOID_RETURN;
}
bool ha_spider::start_bulk_update(
) {
DBUG_ENTER("ha_spider::start_bulk_update");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(check_and_start_bulk_update(SPD_BU_START_BY_BULK_INIT));
}
int ha_spider::exec_bulk_update(
ha_rows *dup_key_found
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::exec_bulk_update");
DBUG_PRINT("info",("spider this=%p", this));
*dup_key_found = 0;
if ((error_num = spider_db_bulk_update_end(this, dup_key_found)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
int ha_spider::end_bulk_update(
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::end_bulk_update");
DBUG_PRINT("info",("spider this=%p", this));
if ((error_num = check_and_end_bulk_update(SPD_BU_START_BY_BULK_INIT)))
{
if (check_error_mode(error_num))
DBUG_RETURN(error_num);
}
DBUG_RETURN(0);
}
int ha_spider::bulk_update_row(
const uchar *old_data,
const uchar *new_data,
ha_rows *dup_key_found
)
{
DBUG_ENTER("ha_spider::bulk_update_row");
DBUG_PRINT("info",("spider this=%p", this));
*dup_key_found = 0;
DBUG_RETURN(update_row(old_data, new_data));
}
int ha_spider::update_row(
const uchar *old_data,
const uchar *new_data
)
{
int error_num;
THD *thd = ha_thd();
backup_error_status();
DBUG_ENTER("ha_spider::update_row");
DBUG_PRINT("info",("spider this=%p", this));
if (spider_param_read_only_mode(thd, share->read_only_mode))
{
my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
table_share->db.str, table_share->table_name.str);
DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
}
#ifndef SPIDER_WITHOUT_HA_STATISTIC_INCREMENT
ha_statistic_increment(&SSV::ha_update_count);
#endif
do_direct_update = FALSE;
if ((error_num = spider_db_update(this, table, old_data)))
DBUG_RETURN(check_error_mode(error_num));
if (table->found_next_number_field &&
new_data == table->record[0] &&
!table->s->next_number_keypart
) {
pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
if (!share->lgtm_tblhnd_share->auto_increment_init)
{
info(HA_STATUS_AUTO);
share->lgtm_tblhnd_share->auto_increment_lclval =
stats.auto_increment_value;
share->lgtm_tblhnd_share->auto_increment_init = TRUE;
DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
}
ulonglong tmp_auto_increment;
if (((Field_num *) table->found_next_number_field)->unsigned_flag)
{
tmp_auto_increment =
(ulonglong) table->found_next_number_field->val_int();
} else {
longlong tmp_auto_increment2 =
table->found_next_number_field->val_int();
if (tmp_auto_increment2 > 0)
tmp_auto_increment = tmp_auto_increment2;
else
tmp_auto_increment = 0;
}
if (tmp_auto_increment >= share->lgtm_tblhnd_share->auto_increment_lclval)
{
share->lgtm_tblhnd_share->auto_increment_lclval = tmp_auto_increment + 1;
share->lgtm_tblhnd_share->auto_increment_value = tmp_auto_increment + 1;
DBUG_PRINT("info",("spider after auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
DBUG_PRINT("info",("spider auto_increment_value=%llu",
share->lgtm_tblhnd_share->auto_increment_value));
}
pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
}
DBUG_RETURN(0);
}
bool ha_spider::check_direct_update_sql_part(
st_select_lex *select_lex,
longlong select_limit,
longlong offset_limit
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::check_direct_update_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
dbton_hdl->check_direct_update(select_lex, select_limit, offset_limit)
) {
DBUG_RETURN(TRUE);
}
}
DBUG_RETURN(FALSE);
}
/**
Perform initialization for a direct update request.
@param update fields Pointer to the list of fields to update.
@return >0 Error.
0 Success.
*/
int ha_spider::direct_update_rows_init(
List<Item> *update_fields
)
{
st_select_lex *select_lex;
longlong select_limit;
longlong offset_limit;
List_iterator<Item> it(*wide_handler->direct_update_fields);
Item *item;
Field *field;
THD *thd = wide_handler->trx->thd;
DBUG_ENTER("ha_spider::direct_update_rows_init");
DBUG_PRINT("info",("spider this=%p", this));
if (thd->variables.time_zone != UTC)
{
while ((item = it++))
{
if (item->type() == Item::FIELD_ITEM)
{
field = ((Item_field *)item)->field;
if (field->type() == FIELD_TYPE_TIMESTAMP &&
field->flags & UNIQUE_KEY_FLAG)
{
/*
Spider cannot perform direct update on unique timestamp fields.
To avoid false duplicate key errors, the table needs to be
updated one row at a time.
*/
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
}
}
}
if (!dml_inited)
{
if (unlikely(dml_init()))
{
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
}
direct_update_init(
thd,
FALSE
);
if (!wide_handler->condition)
wide_handler->cond_check = FALSE;
spider_get_select_limit(this, &select_lex, &select_limit, &offset_limit);
if (wide_handler->direct_update_fields)
{
if (
#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
#else
!(thd->variables.optimizer_switch &
OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) ||
#endif
!select_lex ||
select_lex->table_list.elements != 1 ||
check_update_columns_sql_part() ||
check_direct_update_sql_part(select_lex, select_limit, offset_limit) ||
spider_db_append_condition(this, NULL, 0, TRUE)
) {
DBUG_PRINT("info",("spider FALSE by condition"));
do_direct_update = FALSE;
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
if (select_lex->order_list.elements)
{
ORDER *order;
for (order = (ORDER *) select_lex->order_list.first; order;
order = order->next)
{
if (check_item_type_sql((*order->item)))
{
DBUG_PRINT("info",("spider FALSE by order"));
do_direct_update = FALSE;
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
}
result_list.direct_order_limit = TRUE;
}
wide_handler->trx->direct_update_count++;
DBUG_PRINT("info",("spider OK"));
DBUG_RETURN(0);
}
DBUG_PRINT("info",("spider offset_limit=%lld", offset_limit));
DBUG_PRINT("info",("spider sql_command=%u", wide_handler->sql_command));
DBUG_PRINT("info",("spider do_direct_update=%s",
do_direct_update ? "TRUE" : "FALSE"));
if (
!offset_limit &&
do_direct_update
) {
wide_handler->trx->direct_update_count++;
DBUG_PRINT("info",("spider OK"));
DBUG_RETURN(0);
}
DBUG_PRINT("info",("spider FALSE by default"));
do_direct_update = FALSE;
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
int ha_spider::direct_update_rows(
ha_rows *update_rows,
ha_rows *found_rows
) {
int error_num;
THD *thd = ha_thd();
backup_error_status();
DBUG_ENTER("ha_spider::direct_update_rows");
DBUG_PRINT("info",("spider this=%p", this));
if (spider_param_read_only_mode(thd, share->read_only_mode))
{
my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
table_share->db.str, table_share->table_name.str);
DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
}
if ((error_num=
spider_db_direct_update(this, table, update_rows, found_rows)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
bool ha_spider::start_bulk_delete(
) {
DBUG_ENTER("ha_spider::start_bulk_delete");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(check_and_start_bulk_update(SPD_BU_START_BY_BULK_INIT));
}
int ha_spider::end_bulk_delete(
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::end_bulk_delete");
DBUG_PRINT("info",("spider this=%p", this));
if ((error_num = check_and_end_bulk_update(SPD_BU_START_BY_BULK_INIT)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
int ha_spider::delete_row(
const uchar *buf
) {
THD *thd = ha_thd();
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::delete_row");
DBUG_PRINT("info",("spider this=%p", this));
if (spider_param_read_only_mode(thd, share->read_only_mode))
{
my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
table_share->db.str, table_share->table_name.str);
DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
}
#ifndef SPIDER_WITHOUT_HA_STATISTIC_INCREMENT
ha_statistic_increment(&SSV::ha_delete_count);
#endif
do_direct_update = FALSE;
if ((error_num = spider_db_delete(this, table, buf)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
bool ha_spider::check_direct_delete_sql_part(
st_select_lex *select_lex,
longlong select_limit,
longlong offset_limit
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::check_direct_delete_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
dbton_hdl->check_direct_delete(select_lex, select_limit, offset_limit)
) {
DBUG_RETURN(TRUE);
}
}
DBUG_RETURN(FALSE);
}
int ha_spider::direct_delete_rows_init()
{
st_select_lex *select_lex;
longlong select_limit;
longlong offset_limit;
THD *thd = wide_handler->trx->thd;
DBUG_ENTER("ha_spider::direct_delete_rows_init");
DBUG_PRINT("info",("spider this=%p", this));
if (!dml_inited)
{
if (unlikely(dml_init()))
{
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
}
direct_update_init(
thd,
FALSE
);
if (!wide_handler->condition)
wide_handler->cond_check = FALSE;
spider_get_select_limit(this, &select_lex, &select_limit, &offset_limit);
if (
#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
#else
!(thd->variables.optimizer_switch &
OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) ||
#endif
!select_lex ||
select_lex->table_list.elements != 1 ||
check_direct_delete_sql_part(select_lex, select_limit, offset_limit) ||
spider_db_append_condition(this, NULL, 0, TRUE)
) {
DBUG_PRINT("info",("spider FALSE by condition"));
do_direct_update = FALSE;
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
if (select_lex->order_list.elements)
{
ORDER *order;
for (order = (ORDER *) select_lex->order_list.first; order;
order = order->next)
{
if (check_item_type_sql((*order->item)))
{
DBUG_PRINT("info",("spider FALSE by order"));
do_direct_update = FALSE;
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
}
result_list.direct_order_limit = TRUE;
}
wide_handler->trx->direct_delete_count++;
DBUG_PRINT("info",("spider OK"));
DBUG_RETURN(0);
}
int ha_spider::direct_delete_rows(
ha_rows *delete_rows
) {
int error_num;
THD *thd = ha_thd();
backup_error_status();
DBUG_ENTER("ha_spider::direct_delete_rows");
DBUG_PRINT("info",("spider this=%p", this));
if (spider_param_read_only_mode(thd, share->read_only_mode))
{
my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
table_share->db.str, table_share->table_name.str);
DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
}
if ((error_num= spider_db_direct_delete(this, table, delete_rows)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
int ha_spider::delete_all_rows()
{
THD *thd = ha_thd();
DBUG_ENTER("ha_spider::delete_all_rows");
if (spider_param_delete_all_rows_type(thd, share->delete_all_rows_type))
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
DBUG_RETURN(truncate());
}
int ha_spider::truncate()
{
int error_num;
THD *thd = ha_thd();
backup_error_status();
DBUG_ENTER("ha_spider::truncate");
DBUG_PRINT("info",("spider this=%p", this));
if (spider_param_read_only_mode(thd, share->read_only_mode))
{
my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
table_share->db.str, table_share->table_name.str);
DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
}
wide_handler->sql_command = SQLCOM_TRUNCATE;
if ((error_num= spider_check_trx_and_get_conn(thd, this)))
{
DBUG_RETURN(error_num);
}
do_direct_update = FALSE;
if ((error_num = spider_db_delete_all_rows(this)))
DBUG_RETURN(check_error_mode(error_num));
if (wide_handler->sql_command == SQLCOM_TRUNCATE &&
table->found_next_number_field)
{
DBUG_PRINT("info",("spider reset auto increment"));
pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
share->lgtm_tblhnd_share->auto_increment_lclval = 1;
share->lgtm_tblhnd_share->auto_increment_init = FALSE;
share->lgtm_tblhnd_share->auto_increment_value = 1;
DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
share->lgtm_tblhnd_share->auto_increment_lclval));
DBUG_PRINT("info",("spider auto_increment_value=%llu",
share->lgtm_tblhnd_share->auto_increment_value));
pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
}
DBUG_RETURN(0);
}
IO_AND_CPU_COST ha_spider::scan_time()
{
IO_AND_CPU_COST cost;
DBUG_ENTER("ha_spider::scan_time");
DBUG_PRINT("info",("spider this=%p", this));
cost.io=0;
cost.cpu= (DISK_READ_COST * share->stat.records * share->stat.mean_rec_length);
DBUG_PRINT("info",("spider scan_time = %.6f", cost.cpu));
DBUG_RETURN(cost);
}
IO_AND_CPU_COST ha_spider::rnd_pos_time(ha_rows rows)
{
IO_AND_CPU_COST cost= { 0.0, 0.0}; // Row is in memory
return cost;
}
IO_AND_CPU_COST ha_spider::keyread_time(uint index, ulong ranges, ha_rows rows,
ulonglong blocks)
{
IO_AND_CPU_COST cost;
DBUG_ENTER("ha_spider::keyread_time");
DBUG_PRINT("info",("spider this=%p", this));
/*
Here we only calculate transfer costs. The normal handler cost functions
will add costs for accessing a row/key.
*/
if (wide_handler->keyread)
{
cost.io= 0;
cost.cpu= DISK_READ_COST * rows * table->key_info[index].key_length;
} else {
cost.io= 0;
cost.cpu= DISK_READ_COST * rows * share->stat.mean_rec_length;
}
DBUG_PRINT("info",("spider scan_time(keyread) = %.6f", cost.cpu));
DBUG_RETURN(cost);
}
const key_map *ha_spider::keys_to_use_for_scanning()
{
DBUG_ENTER("ha_spider::keys_to_use_for_scanning");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(&key_map_full);
}
ha_rows ha_spider::estimate_rows_upper_bound()
{
DBUG_ENTER("ha_spider::estimate_rows_upper_bound");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(HA_POS_ERROR);
}
void ha_spider::print_error(
int error,
myf errflag
) {
DBUG_ENTER("ha_spider::print_error");
DBUG_PRINT("info",("spider this=%p", this));
if (!current_thd->is_error())
{
switch (error)
{
case ER_SPIDER_CON_COUNT_ERROR:
my_message(error, ER_SPIDER_CON_COUNT_ERROR_STR, MYF(0));
break;
default:
handler::print_error(error, errflag);
break;
}
}
DBUG_VOID_RETURN;
}
bool ha_spider::get_error_message(
int error,
String *buf
) {
DBUG_ENTER("ha_spider::get_error_message");
DBUG_PRINT("info",("spider this=%p", this));
switch (error)
{
case ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM:
if (buf->reserve(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_LEN))
DBUG_RETURN(TRUE);
buf->q_append(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR,
ER_SPIDER_REMOTE_SERVER_GONE_AWAY_LEN);
break;
default:
if (buf->reserve(ER_SPIDER_UNKNOWN_LEN))
DBUG_RETURN(TRUE);
buf->q_append(ER_SPIDER_UNKNOWN_STR, ER_SPIDER_UNKNOWN_LEN);
break;
}
DBUG_RETURN(FALSE);
}
int ha_spider::create(
const char *name,
TABLE *form,
HA_CREATE_INFO *info
) {
int error_num, dummy;
SPIDER_SHARE tmp_share;
THD *thd = ha_thd();
uint sql_command = thd_sql_command(thd), roop_count;
SPIDER_TRX *trx;
TABLE *table_tables = NULL;
SPIDER_Open_tables_backup open_tables_backup;
DBUG_ENTER("ha_spider::create");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider name=%s", name));
DBUG_PRINT("info",
("spider form->s->connect_string=%s", form->s->connect_string.str));
DBUG_PRINT("info",
("spider info->connect_string=%s", info->connect_string.str));
if (
sql_command == SQLCOM_CREATE_INDEX ||
sql_command == SQLCOM_DROP_INDEX
)
DBUG_RETURN(0);
if (form->s->hlindexes() > 0)
{
my_error(ER_ILLEGAL_HA_CREATE_OPTION, MYF(0), "SPIDER", "VECTOR");
DBUG_RETURN(HA_ERR_UNSUPPORTED);
}
if (!is_supported_parser_charset(info->default_table_charset))
{
String charset_option;
charset_option.append(STRING_WITH_LEN("CHARSET "));
charset_option.append(info->default_table_charset->cs_name);
my_error(ER_ILLEGAL_HA_CREATE_OPTION, MYF(0), "SPIDER",
charset_option.c_ptr());
error_num= ER_ILLEGAL_HA_CREATE_OPTION;
goto error_charset;
}
if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
goto error_get_trx;
if (
trx->locked_connections &&
sql_command == SQLCOM_ALTER_TABLE
) {
my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
error_num = ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM;
goto error_alter_before_unlock;
}
memset((void*)&tmp_share, 0, sizeof(SPIDER_SHARE));
tmp_share.table_name = (char*) name;
tmp_share.table_name_length = strlen(name);
tmp_share.table_name_hash_value = my_calc_hash(&trx->trx_alter_table_hash,
(uchar*) tmp_share.table_name, tmp_share.table_name_length);
tmp_share.lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
name, tmp_share.table_name_length, tmp_share.table_name_hash_value,
FALSE, TRUE, &error_num);
if (!tmp_share.lgtm_tblhnd_share)
{
goto error;
}
if (form->s->keys > 0)
{
if (!(tmp_share.static_key_cardinality = (longlong *)
spider_bulk_malloc(spider_current_trx, SPD_MID_HA_SPIDER_CREATE_1, MYF(MY_WME),
&tmp_share.static_key_cardinality,
(uint) (sizeof(*tmp_share.static_key_cardinality) * form->s->keys),
NullS))
) {
error_num = HA_ERR_OUT_OF_MEM;
goto error;
}
if (!(tmp_share.key_hint = new spider_string[form->s->keys]))
{
error_num = HA_ERR_OUT_OF_MEM;
goto error;
}
}
for (roop_count = 0; roop_count < form->s->keys; roop_count++)
tmp_share.key_hint[roop_count].init_calc_mem(SPD_MID_HA_SPIDER_CREATE_2);
DBUG_PRINT("info",("spider tmp_share.key_hint=%p", tmp_share.key_hint));
if ((error_num = spider_parse_connect_info(&tmp_share, form->s,
form->part_info,
1)))
goto error;
DBUG_PRINT("info",("spider tmp_table=%d", form->s->tmp_table));
if (
(sql_command == SQLCOM_CREATE_TABLE &&
!(info->options & HA_LEX_CREATE_TMP_TABLE))
) {
if (
!(table_tables = spider_open_sys_table(
current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup,
&error_num))
) {
goto error;
}
if (
thd->lex->create_info.or_replace() &&
(error_num = spider_delete_tables(
table_tables, tmp_share.table_name, &dummy)) &&
/* In this context, no key found in mysql.spider_tables means
the Spider table does not exist */
error_num != HA_ERR_KEY_NOT_FOUND
) {
goto error;
}
if (
(error_num = spider_insert_tables(table_tables, &tmp_share))
) {
goto error;
}
spider_sys_close_table(current_thd, &open_tables_backup);
table_tables = NULL;
} else if (
sql_command == SQLCOM_ALTER_TABLE
) {
SPIDER_ALTER_TABLE *alter_table;
if (trx->query_id != thd->query_id)
{
spider_free_trx_alter_table(trx);
trx->query_id = thd->query_id;
}
if (!(alter_table =
(SPIDER_ALTER_TABLE*) my_hash_search_using_hash_value(
&trx->trx_alter_table_hash, tmp_share.table_name_hash_value,
(uchar*) tmp_share.table_name, tmp_share.table_name_length)))
{
if ((error_num = spider_create_trx_alter_table(trx, &tmp_share, TRUE)))
goto error;
}
trx->tmp_flg = TRUE;
DBUG_PRINT("info",
("spider alter_info.flags: %llu alter_info.partition_flags: %lu",
thd->lex->alter_info.flags, thd->lex->alter_info.partition_flags));
if ((thd->lex->alter_info.partition_flags &
(
SPIDER_ALTER_PARTITION_ADD | SPIDER_ALTER_PARTITION_DROP |
SPIDER_ALTER_PARTITION_COALESCE | SPIDER_ALTER_PARTITION_REORGANIZE |
SPIDER_ALTER_PARTITION_TABLE_REORG | SPIDER_ALTER_PARTITION_REBUILD
)
) &&
memcmp(name + strlen(name) - 5, "#TMP#", 5)
) {
if (
!(table_tables = spider_open_sys_table(
current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup,
&error_num))
) {
goto error;
}
if (
(error_num = spider_insert_tables(table_tables, &tmp_share))
) {
goto error;
}
spider_sys_close_table(current_thd, &open_tables_backup);
table_tables = NULL;
}
}
if (
(
(info->used_fields & HA_CREATE_USED_AUTO) ||
sql_command == SQLCOM_ALTER_TABLE ||
sql_command == SQLCOM_CREATE_INDEX ||
sql_command == SQLCOM_RENAME_TABLE
) &&
info->auto_increment_value > 0
) {
pthread_mutex_lock(&tmp_share.lgtm_tblhnd_share->auto_increment_mutex);
tmp_share.lgtm_tblhnd_share->auto_increment_value =
info->auto_increment_value;
DBUG_PRINT("info",("spider auto_increment_value=%llu",
tmp_share.lgtm_tblhnd_share->auto_increment_value));
pthread_mutex_unlock(&tmp_share.lgtm_tblhnd_share->auto_increment_mutex);
}
if (tmp_share.static_key_cardinality)
spider_free(spider_current_trx, tmp_share.static_key_cardinality, MYF(0));
spider_free_share_alloc(&tmp_share);
DBUG_RETURN(0);
error:
if (table_tables)
spider_sys_close_table(current_thd, &open_tables_backup);
if (tmp_share.lgtm_tblhnd_share)
spider_free_lgtm_tblhnd_share_alloc(tmp_share.lgtm_tblhnd_share, FALSE);
if (tmp_share.static_key_cardinality)
spider_free(spider_current_trx, tmp_share.static_key_cardinality, MYF(0));
spider_free_share_alloc(&tmp_share);
error_alter_before_unlock:
error_get_trx:
error_charset:
DBUG_RETURN(error_num);
}
void ha_spider::update_create_info(
HA_CREATE_INFO* create_info
) {
DBUG_ENTER("ha_spider::update_create_info");
DBUG_PRINT("info",("spider this=%p", this));
if (wide_handler && wide_handler->sql_command == SQLCOM_ALTER_TABLE)
{
if (!(wide_handler->trx = spider_get_trx(ha_thd(), TRUE, &store_error_num)))
DBUG_VOID_RETURN;
SPIDER_TRX *trx = wide_handler->trx;
THD *thd = trx->thd;
if (trx->query_id != thd->query_id)
{
spider_free_trx_alter_table(trx);
trx->query_id = thd->query_id;
trx->tmp_flg = FALSE;
}
if (!(SPIDER_ALTER_TABLE*) my_hash_search(&trx->trx_alter_table_hash,
(uchar*) share->table_name, share->table_name_length))
{
if (spider_create_trx_alter_table(trx, share, FALSE))
{
store_error_num = HA_ERR_OUT_OF_MEM;
DBUG_VOID_RETURN;
}
}
}
if (!create_info->connect_string.str)
{
create_info->connect_string.str = table->s->connect_string.str;
create_info->connect_string.length = table->s->connect_string.length;
}
DBUG_PRINT("info",
("spider create_info->connect_string=%s",
create_info->connect_string.str));
if (
!(create_info->used_fields & HA_CREATE_USED_AUTO)
) {
info(HA_STATUS_AUTO);
create_info->auto_increment_value = stats.auto_increment_value;
}
DBUG_VOID_RETURN;
}
int ha_spider::rename_table(
const char *from,
const char *to
) {
int error_num, roop_count, old_link_count, from_len = strlen(from),
to_len = strlen(to), tmp_error_num;
my_hash_value_type from_hash_value = my_calc_hash(&spider_open_tables,
(uchar*) from, from_len);
my_hash_value_type to_hash_value = my_calc_hash(&spider_open_tables,
(uchar*) to, to_len);
THD *thd = ha_thd();
uint sql_command = thd_sql_command(thd);
SPIDER_TRX *trx;
TABLE *table_tables = NULL;
SPIDER_ALTER_TABLE *alter_table_from, *alter_table_to;
SPIDER_LGTM_TBLHND_SHARE *from_lgtm_tblhnd_share, *to_lgtm_tblhnd_share;
SPIDER_Open_tables_backup open_tables_backup;
DBUG_ENTER("ha_spider::rename_table");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider from=%s", from));
DBUG_PRINT("info",("spider to=%s", to));
if (
sql_command == SQLCOM_CREATE_INDEX ||
sql_command == SQLCOM_DROP_INDEX
)
DBUG_RETURN(0);
if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
goto error;
if (
trx->locked_connections &&
/* SQLCOM_RENAME_TABLE doesn't come here */
sql_command == SQLCOM_ALTER_TABLE
) {
my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
error_num = ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM;
goto error;
}
if (
sql_command == SQLCOM_RENAME_TABLE ||
(sql_command == SQLCOM_ALTER_TABLE && !trx->tmp_flg) ||
!(alter_table_from =
(SPIDER_ALTER_TABLE*) my_hash_search(&trx->trx_alter_table_hash,
(uchar*) from, from_len))
) {
if (
!(table_tables = spider_open_sys_table(
current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup,
&error_num))
) {
goto error;
}
if (
(error_num = spider_update_tables_name(
table_tables, from, to, &old_link_count))
) {
goto error;
}
spider_sys_close_table(current_thd, &open_tables_backup);
table_tables = NULL;
/* release table mon list */
for (roop_count = 0; roop_count < old_link_count; roop_count++)
{
if ((error_num =
spider_release_ping_table_mon_list(from, from_len, roop_count)))
{
goto error;
}
}
} else if (sql_command == SQLCOM_ALTER_TABLE)
{
DBUG_PRINT("info",("spider alter_table_from=%p", alter_table_from));
if ((alter_table_to =
(SPIDER_ALTER_TABLE*) my_hash_search(&trx->trx_alter_table_hash,
(uchar*) to, to_len))
) {
DBUG_PRINT("info",("spider copy link_statuses"));
uint all_link_count = alter_table_from->all_link_count;
if (all_link_count > alter_table_to->all_link_count)
all_link_count = alter_table_to->all_link_count;
for (roop_count = 0; roop_count < (int) all_link_count; roop_count++)
{
if (alter_table_from->tmp_link_statuses[roop_count] <=
SPIDER_LINK_STATUS_NO_CHANGE)
{
DBUG_PRINT("info",("spider copy %d", roop_count));
alter_table_from->tmp_link_statuses[roop_count] =
alter_table_to->tmp_link_statuses[roop_count];
}
DBUG_PRINT("info",("spider link_status_from[%d]=%ld", roop_count,
alter_table_from->tmp_link_statuses[roop_count]));
DBUG_PRINT("info",("spider link_status_to[%d]=%ld", roop_count,
alter_table_to->tmp_link_statuses[roop_count]));
}
}
DBUG_PRINT("info",
("spider alter_info.flags: %llu alter_info.partition_flags: %lu",
thd->lex->alter_info.flags, thd->lex->alter_info.partition_flags));
if (
!(table_tables = spider_open_sys_table(
current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup,
&error_num))
) {
goto error;
}
if (alter_table_from->now_create)
{
SPIDER_SHARE tmp_share;
tmp_share.table_name = (char*) to;
tmp_share.table_name_length = to_len;
tmp_share.priority = alter_table_from->tmp_priority;
tmp_share.link_count = alter_table_from->link_count;
tmp_share.all_link_count = alter_table_from->all_link_count;
memcpy(&tmp_share.alter_table, alter_table_from,
sizeof(*alter_table_from));
if (
(error_num = spider_insert_tables(table_tables, &tmp_share))
) {
goto error;
}
} else {
if (
(error_num = spider_update_tables_priority(
table_tables, alter_table_from, to, &old_link_count))
) {
goto error;
}
}
spider_sys_close_table(current_thd, &open_tables_backup);
table_tables = NULL;
if (!alter_table_from->now_create)
{
/* release table mon list */
for (roop_count = 0; roop_count < (int) alter_table_from->all_link_count;
roop_count++)
{
if ((error_num =
spider_release_ping_table_mon_list(from, from_len, roop_count)))
{
goto error;
}
}
for (roop_count = 0; roop_count < old_link_count; roop_count++)
{
if ((error_num =
spider_release_ping_table_mon_list(to, to_len, roop_count)))
{
goto error;
}
}
}
/*
spider_free_trx_alter_table_alloc(trx, alter_table_from);
*/
}
pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
from_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
from, from_len, from_hash_value, TRUE, FALSE, &error_num);
if (from_lgtm_tblhnd_share)
{
to_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
to, to_len, to_hash_value, TRUE, TRUE, &error_num);
if (!to_lgtm_tblhnd_share)
{
pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
goto error;
}
DBUG_PRINT("info",
("spider auto_increment_init=%s",
from_lgtm_tblhnd_share->auto_increment_init ? "TRUE" : "FALSE"));
to_lgtm_tblhnd_share->auto_increment_init =
from_lgtm_tblhnd_share->auto_increment_init;
to_lgtm_tblhnd_share->auto_increment_lclval =
from_lgtm_tblhnd_share->auto_increment_lclval;
to_lgtm_tblhnd_share->auto_increment_value =
from_lgtm_tblhnd_share->auto_increment_value;
spider_free_lgtm_tblhnd_share_alloc(from_lgtm_tblhnd_share, TRUE);
}
pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
spider_delete_init_error_table(from);
DBUG_RETURN(0);
error:
if (table_tables)
spider_sys_close_table(current_thd, &open_tables_backup);
pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
to_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
to, to_len, to_hash_value, TRUE, FALSE, &tmp_error_num);
if (to_lgtm_tblhnd_share)
spider_free_lgtm_tblhnd_share_alloc(to_lgtm_tblhnd_share, TRUE);
pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
DBUG_RETURN(error_num);
}
int ha_spider::delete_table(
const char *name
) {
int error_num;
THD *thd = ha_thd();
SPIDER_TRX *trx;
TABLE *table_tables = NULL;
uint sql_command = thd_sql_command(thd);
SPIDER_ALTER_TABLE *alter_table;
SPIDER_Open_tables_backup open_tables_backup;
DBUG_ENTER("ha_spider::delete_table");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider name=%s", name));
if (
sql_command == SQLCOM_CREATE_INDEX ||
sql_command == SQLCOM_DROP_INDEX
)
DBUG_RETURN(0);
if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
goto error;
if (
trx->locked_connections &&
/* SQLCOM_DROP_DB doesn't come here */
(
sql_command == SQLCOM_DROP_TABLE ||
sql_command == SQLCOM_ALTER_TABLE
)
) {
my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
error_num = ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM;
goto error;
}
if (sql_command == SQLCOM_DROP_TABLE ||
sql_command == SQLCOM_DROP_DB ||
sql_command == SQLCOM_ALTER_TABLE ||
sql_command == SQLCOM_CREATE_TABLE)
{
SPIDER_LGTM_TBLHND_SHARE *lgtm_tblhnd_share;
int roop_count, old_link_count = 0, name_len = strlen(name);
my_hash_value_type hash_value = my_calc_hash(&spider_open_tables,
(uchar*) name, name_len);
if (
sql_command == SQLCOM_ALTER_TABLE &&
(alter_table =
(SPIDER_ALTER_TABLE*) my_hash_search_using_hash_value(
&trx->trx_alter_table_hash,
hash_value, (uchar*) name, name_len)) &&
alter_table->now_create
)
DBUG_RETURN(0);
DBUG_PRINT("info",
("spider alter_info.flags: %llu alter_info.partition_flags: %lu",
thd->lex->alter_info.flags, thd->lex->alter_info.partition_flags));
if (
!(table_tables = spider_open_sys_table(
current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup,
&error_num))
) {
goto error;
}
if (
(error_num = spider_delete_tables(
table_tables, name, &old_link_count))
) {
/* In this context, no key found in mysql.spider_tables means
the Spider table does not exist */
if (error_num == HA_ERR_KEY_NOT_FOUND)
error_num= HA_ERR_NO_SUCH_TABLE;
goto error;
}
spider_sys_close_table(current_thd, &open_tables_backup);
table_tables = NULL;
/* release table mon list */
for (roop_count = 0; roop_count < old_link_count; roop_count++)
{
if ((error_num =
spider_release_ping_table_mon_list(name, name_len, roop_count)))
goto error;
}
pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
name, name_len, hash_value, TRUE, FALSE, &error_num);
if (lgtm_tblhnd_share)
spider_free_lgtm_tblhnd_share_alloc(lgtm_tblhnd_share, TRUE);
pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
}
spider_delete_init_error_table(name);
DBUG_RETURN(0);
error:
if (table_tables)
spider_sys_close_table(current_thd, &open_tables_backup);
DBUG_RETURN(error_num);
}
bool ha_spider::is_crashed() const
{
DBUG_ENTER("ha_spider::is_crashed");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(FALSE);
}
#ifdef SPIDER_HANDLER_AUTO_REPAIR_HAS_ERROR
bool ha_spider::auto_repair(int error) const
#else
bool ha_spider::auto_repair() const
#endif
{
DBUG_ENTER("ha_spider::auto_repair");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_RETURN(FALSE);
}
int ha_spider::disable_indexes(
key_map map, bool persist
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::disable_indexes");
DBUG_PRINT("info",("spider this=%p", this));
if (persist)
{
if ((error_num = spider_db_disable_keys(this)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
int ha_spider::enable_indexes(
key_map map, bool persist
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::enable_indexes");
DBUG_PRINT("info",("spider this=%p", this));
if (persist)
{
if ((error_num = spider_db_enable_keys(this)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
DBUG_RETURN(HA_ERR_WRONG_COMMAND);
}
int ha_spider::check(
THD* thd,
HA_CHECK_OPT* check_opt
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::check");
DBUG_PRINT("info",("spider this=%p", this));
if ((error_num = spider_db_check_table(this, check_opt)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
int ha_spider::repair(
THD* thd,
HA_CHECK_OPT* check_opt
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::repair");
DBUG_PRINT("info",("spider this=%p", this));
if ((error_num = spider_db_repair_table(this, check_opt)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
bool ha_spider::check_and_repair(
THD *thd
) {
HA_CHECK_OPT check_opt;
DBUG_ENTER("ha_spider::check_and_repair");
DBUG_PRINT("info",("spider this=%p", this));
check_opt.init();
check_opt.flags = T_MEDIUM;
if (spider_db_check_table(this, &check_opt))
{
check_opt.flags = T_QUICK;
if (spider_db_repair_table(this, &check_opt))
DBUG_RETURN(TRUE);
}
DBUG_RETURN(FALSE);
}
int ha_spider::analyze(
THD* thd,
HA_CHECK_OPT* check_opt
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::analyze");
DBUG_PRINT("info",("spider this=%p", this));
if ((error_num = spider_db_analyze_table(this)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
int ha_spider::optimize(
THD* thd,
HA_CHECK_OPT* check_opt
) {
int error_num;
backup_error_status();
DBUG_ENTER("ha_spider::optimize");
DBUG_PRINT("info",("spider this=%p", this));
if ((error_num = spider_db_optimize_table(this)))
DBUG_RETURN(check_error_mode(error_num));
DBUG_RETURN(0);
}
bool ha_spider::is_fatal_error(
int error_num,
uint flags
) {
DBUG_ENTER("ha_spider::is_fatal_error");
DBUG_PRINT("info",("spider error_num=%d", error_num));
DBUG_PRINT("info",("spider flags=%u", flags));
if (
!handler::is_fatal_error(error_num, flags)
) {
DBUG_PRINT("info",("spider FALSE"));
DBUG_RETURN(FALSE);
}
DBUG_PRINT("info",("spider TRUE"));
DBUG_RETURN(TRUE);
}
Field *ha_spider::field_exchange(
Field *field
) {
DBUG_ENTER("ha_spider::field_exchange");
DBUG_PRINT("info",("spider in field=%p", field));
DBUG_PRINT("info",("spider in field->table=%p", field->table));
DBUG_PRINT("info",("spider table=%p", table));
if (field->table != table)
DBUG_RETURN(NULL);
DBUG_PRINT("info",("spider out field=%p", field));
DBUG_RETURN(field);
}
const COND *ha_spider::cond_push(
const COND *cond
) {
DBUG_ENTER("ha_spider::cond_push");
if (
wide_handler->stage == SPD_HND_STAGE_COND_PUSH &&
wide_handler->stage_executor != this)
{
DBUG_RETURN(NULL);
}
wide_handler->stage = SPD_HND_STAGE_COND_PUSH;
wide_handler->stage_executor = this;
wide_handler->cond_check = FALSE;
if (cond)
{
SPIDER_CONDITION *tmp_cond;
if (!(tmp_cond = (SPIDER_CONDITION *)
spider_malloc(spider_current_trx, SPD_MID_HA_SPIDER_COND_PUSH_1, sizeof(*tmp_cond), MYF(MY_WME)))
)
DBUG_RETURN(cond);
tmp_cond->cond = (COND *) cond;
tmp_cond->next = wide_handler->condition;
wide_handler->condition = tmp_cond;
}
DBUG_RETURN(NULL);
}
void ha_spider::cond_pop()
{
DBUG_ENTER("ha_spider::cond_pop");
if (
wide_handler->stage == SPD_HND_STAGE_COND_POP &&
wide_handler->stage_executor != this)
{
DBUG_VOID_RETURN;
}
wide_handler->stage = SPD_HND_STAGE_COND_POP;
wide_handler->stage_executor = this;
if (wide_handler->condition)
{
SPIDER_CONDITION *tmp_cond = wide_handler->condition->next;
spider_free(spider_current_trx, wide_handler->condition, MYF(0));
wide_handler->condition = tmp_cond;
}
DBUG_VOID_RETURN;
}
int ha_spider::info_push(
uint info_type,
void *info
) {
int error_num = 0;
DBUG_ENTER("ha_spider::info_push");
DBUG_PRINT("info",("spider this=%p", this));
if (
wide_handler->stage == SPD_HND_STAGE_INFO_PUSH &&
wide_handler->stage_executor != this)
{
DBUG_RETURN(0);
}
wide_handler->stage = SPD_HND_STAGE_INFO_PUSH;
wide_handler->stage_executor = this;
switch (info_type)
{
#ifdef INFO_KIND_UPDATE_FIELDS
case INFO_KIND_UPDATE_FIELDS:
DBUG_PRINT("info",("spider INFO_KIND_UPDATE_FIELDS"));
wide_handler->direct_update_fields = (List<Item> *) info;
wide_handler->update_request = TRUE;
if (wide_handler->keyread && check_partitioned())
wide_handler->keyread = FALSE;
break;
#endif
#ifdef INFO_KIND_UPDATE_VALUES
case INFO_KIND_UPDATE_VALUES:
DBUG_PRINT("info",("spider INFO_KIND_UPDATE_VALUES"));
wide_handler->direct_update_values = (List<Item> *) info;
break;
#endif
#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
case INFO_KIND_FORCE_LIMIT_BEGIN:
DBUG_PRINT("info",("spider INFO_KIND_FORCE_LIMIT_BEGIN"));
wide_handler->info_limit = *((longlong *) info);
break;
case INFO_KIND_FORCE_LIMIT_END:
DBUG_PRINT("info",("spider INFO_KIND_FORCE_LIMIT_END"));
wide_handler->info_limit = 9223372036854775807LL;
break;
#endif
default:
break;
}
DBUG_RETURN(error_num);
}
void ha_spider::return_record_by_parent()
{
DBUG_ENTER("ha_spider::return_record_by_parent");
DBUG_PRINT("info",("spider this=%p", this));
spider_db_refetch_for_item_sum_funcs(this);
DBUG_VOID_RETURN;
}
TABLE *ha_spider::get_table()
{
DBUG_ENTER("ha_spider::get_table");
DBUG_RETURN(table);
}
void ha_spider::set_ft_discard_bitmap()
{
DBUG_ENTER("ha_spider::set_ft_discard_bitmap");
TABLE_LIST *table_list = spider_get_parent_table_list(this);
if (table_list)
{
st_select_lex *select_lex = table_list->select_lex;
if (select_lex && select_lex->ftfunc_list)
{
uint roop_count;
Field *field;
Item *item, *item_next;
Item_func_match *item_func_match;
Item_field *item_field;
{
List_iterator_fast<Item_func_match> fmi(*select_lex->ftfunc_list);
while ((item_func_match = fmi++))
{
DBUG_PRINT("info",("spider item_func_match=%p", item_func_match));
uint item_count = item_func_match->argument_count();
Item **item_list = item_func_match->arguments();
for (roop_count = 1; roop_count < item_count; roop_count++)
{
item_field = (Item_field *) item_list[roop_count];
DBUG_PRINT("info",("spider item_field=%p", item_field));
field = item_field->field;
DBUG_PRINT("info",("spider field=%p", field));
if (!field || !(field = field_exchange(field)))
continue;
DBUG_PRINT("info",("spider clear_bit=%u", field->field_index));
spider_clear_bit(wide_handler->ft_discard_bitmap,
field->field_index);
}
}
}
THD *thd = ha_thd();
Statement *stmt = thd->stmt_map.find(thd->id);
if (stmt && stmt->free_list)
{
DBUG_PRINT("info",("spider item from stmt"));
item_next = stmt->free_list;
} else {
DBUG_PRINT("info",("spider item from thd"));
item_next = thd->free_list;
}
while ((item = item_next))
{
DBUG_PRINT("info",("spider item=%p", item));
DBUG_PRINT("info",("spider itemtype=%u", item->type()));
item_next = item->next;
if (item->type() != Item::FIELD_ITEM)
continue;
field = ((Item_field *) item)->field;
DBUG_PRINT("info",("spider field=%p", field));
if (!field || !(field = field_exchange(field)))
continue;
DBUG_PRINT("info",("spider field_index=%u", field->field_index));
if (!spider_bit_is_set(wide_handler->ft_discard_bitmap,
field->field_index))
{
bool match_flag = FALSE;
List_iterator_fast<Item_func_match> fmi(*select_lex->ftfunc_list);
while ((item_func_match = fmi++))
{
DBUG_PRINT("info",("spider item_func_match=%p", item_func_match));
uint item_count = item_func_match->argument_count();
Item **item_list = item_func_match->arguments();
for (roop_count = 1; roop_count < item_count; roop_count++)
{
DBUG_PRINT("info",("spider item_list[%u]=%p", roop_count,
item_list[roop_count]));
if (item == item_list[roop_count])
{
DBUG_PRINT("info",("spider matched"));
match_flag = TRUE;
break;
}
}
if (match_flag)
break;
}
if (!match_flag)
{
DBUG_PRINT("info",("spider set_bit=%u", field->field_index));
spider_set_bit(wide_handler->ft_discard_bitmap,
field->field_index);
}
}
}
}
}
DBUG_VOID_RETURN;
}
void ha_spider::set_searched_bitmap()
{
int roop_count;
DBUG_ENTER("ha_spider::set_searched_bitmap");
for (roop_count = 0; roop_count < (int) ((table_share->fields + 7) / 8);
roop_count++)
{
wide_handler->searched_bitmap[roop_count] =
((uchar *) table->read_set->bitmap)[roop_count] |
((uchar *) table->write_set->bitmap)[roop_count];
DBUG_PRINT("info",("spider roop_count=%d", roop_count));
DBUG_PRINT("info",("spider searched_bitmap=%d",
wide_handler->searched_bitmap[roop_count]));
DBUG_PRINT("info",("spider read_set=%d",
((uchar *) table->read_set->bitmap)[roop_count]));
DBUG_PRINT("info",("spider write_set=%d",
((uchar *) table->write_set->bitmap)[roop_count]));
}
if (wide_handler->sql_command == SQLCOM_UPDATE ||
wide_handler->sql_command == SQLCOM_UPDATE_MULTI)
{
DBUG_PRINT("info",("spider update option start"));
Item *item;
st_select_lex *select_lex = spider_get_select_lex(this);
List_iterator_fast<Item> fi(select_lex->item_list);
while ((item = fi++))
{
if (item->type() == Item::FIELD_ITEM)
{
Field *field = ((Item_field *)item)->field;
if (!(field = field_exchange(field)))
{
DBUG_PRINT("info",("spider field is for different table"));
continue;
}
spider_set_bit(wide_handler->searched_bitmap, field->field_index);
DBUG_PRINT("info",("spider set searched_bitmap=%u",
field->field_index));
} else {
DBUG_PRINT("info",("spider item type is not field"));
}
}
}
DBUG_VOID_RETURN;
}
void ha_spider::set_clone_searched_bitmap()
{
DBUG_ENTER("ha_spider::set_clone_searched_bitmap");
DBUG_PRINT("info",("spider searched_bitmap=%p",
wide_handler->searched_bitmap));
#ifndef DBUG_OFF
int roop_count;
for (roop_count = 0; roop_count < (int) ((table_share->fields + 7) / 8);
roop_count++)
DBUG_PRINT("info", ("spider before searched_bitmap is %x",
((uchar *) wide_handler->searched_bitmap)[roop_count]));
#endif
memcpy(wide_handler->searched_bitmap,
pt_clone_source_handler->wide_handler->searched_bitmap,
(table_share->fields + 7) / 8);
#ifndef DBUG_OFF
for (roop_count = 0; roop_count < (int) ((table_share->fields + 7) / 8);
roop_count++)
DBUG_PRINT("info", ("spider after searched_bitmap is %x",
((uchar *) wide_handler->searched_bitmap)[roop_count]));
#endif
memcpy(wide_handler->ft_discard_bitmap,
pt_clone_source_handler->wide_handler->ft_discard_bitmap,
(table_share->fields + 7) / 8);
DBUG_VOID_RETURN;
}
void ha_spider::set_searched_bitmap_from_item_list()
{
DBUG_ENTER("ha_spider::set_searched_bitmap_from_item_list");
Field *field;
Item *item, *item_next;
THD *thd = ha_thd();
Statement *stmt = thd->stmt_map.find(thd->id);
if (stmt && stmt->free_list)
{
DBUG_PRINT("info",("spider item from stmt"));
item_next = stmt->free_list;
} else {
DBUG_PRINT("info",("spider item from thd"));
item_next = thd->free_list;
}
while ((item = item_next))
{
DBUG_PRINT("info",("spider item=%p", item));
DBUG_PRINT("info",("spider itemtype=%u", item->type()));
item_next = item->next;
if (item->type() != Item::FIELD_ITEM)
continue;
field = ((Item_field *) item)->field;
DBUG_PRINT("info",("spider field=%p", field));
if (!field || !(field = field_exchange(field)))
continue;
DBUG_PRINT("info",("spider field_index=%u", field->field_index));
spider_set_bit(wide_handler->searched_bitmap, field->field_index);
}
DBUG_VOID_RETURN;
}
void ha_spider::set_select_column_mode()
{
int roop_count;
KEY *key_info;
KEY_PART_INFO *key_part;
Field *field;
THD *thd = wide_handler->trx->thd;
DBUG_ENTER("ha_spider::set_select_column_mode");
wide_handler->position_bitmap_init = FALSE;
#ifndef DBUG_OFF
for (roop_count = 0; roop_count < (int) ((table_share->fields + 7) / 8);
roop_count++)
DBUG_PRINT("info", ("spider bitmap is %x",
((uchar *) table->read_set->bitmap)[roop_count]));
#endif
select_column_mode = spider_param_select_column_mode(thd,
share->select_column_mode);
if (select_column_mode)
{
DBUG_PRINT("info",("spider searched_bitmap=%p",
wide_handler->searched_bitmap));
set_searched_bitmap();
set_searched_bitmap_from_item_list();
if (wide_handler->external_lock_type == F_WRLCK &&
wide_handler->sql_command != SQLCOM_SELECT)
{
uint part_num = 0;
if (wide_handler->update_request)
part_num = check_partitioned();
if (
part_num ||
table_share->primary_key == MAX_KEY
) {
/* need all columns */
for (roop_count = 0; roop_count < (int) table_share->fields;
roop_count++)
spider_set_bit(wide_handler->searched_bitmap, roop_count);
} else {
/* need primary key columns */
key_info = &table_share->key_info[table_share->primary_key];
key_part = key_info->key_part;
for (roop_count = 0;
roop_count < (int) spider_user_defined_key_parts(key_info);
roop_count++)
{
field = key_part[roop_count].field;
spider_set_bit(wide_handler->searched_bitmap, field->field_index);
}
}
#ifndef DBUG_OFF
for (roop_count = 0;
roop_count < (int) ((table_share->fields + 7) / 8);
roop_count++)
DBUG_PRINT("info", ("spider change bitmap is %x",
wide_handler->searched_bitmap[roop_count]));
#endif
}
}
DBUG_VOID_RETURN;
}
void ha_spider::check_select_column(bool rnd)
{
THD *thd = wide_handler->trx->thd;
DBUG_ENTER("ha_spider::check_select_column");
select_column_mode = spider_param_select_column_mode(thd,
share->select_column_mode);
if (select_column_mode)
{
if (!rnd)
{
if (wide_handler->between_flg)
{
memcpy(wide_handler->idx_read_bitmap,
table->read_set->bitmap, (table_share->fields + 7) / 8);
memcpy(wide_handler->idx_write_bitmap,
table->write_set->bitmap, (table_share->fields + 7) / 8);
wide_handler->between_flg = FALSE;
wide_handler->idx_bitmap_is_set = TRUE;
DBUG_PRINT("info",("spider set idx_bitmap"));
} else if (wide_handler->idx_bitmap_is_set)
{
memcpy(table->read_set->bitmap,
wide_handler->idx_read_bitmap,
(table_share->fields + 7) / 8);
memcpy(table->write_set->bitmap,
wide_handler->idx_write_bitmap,
(table_share->fields + 7) / 8);
DBUG_PRINT("info",("spider copy idx_bitmap"));
}
} else {
if (
!wide_handler->rnd_bitmap_is_set &&
(
wide_handler->between_flg ||
wide_handler->idx_bitmap_is_set
)
) {
memcpy(wide_handler->rnd_read_bitmap,
table->read_set->bitmap, (table_share->fields + 7) / 8);
memcpy(wide_handler->rnd_write_bitmap,
table->write_set->bitmap, (table_share->fields + 7) / 8);
wide_handler->between_flg = FALSE;
wide_handler->rnd_bitmap_is_set = TRUE;
DBUG_PRINT("info",("spider set rnd_bitmap"));
} else if (wide_handler->rnd_bitmap_is_set)
{
memcpy(table->read_set->bitmap,
wide_handler->rnd_read_bitmap,
(table_share->fields + 7) / 8);
memcpy(table->write_set->bitmap,
wide_handler->rnd_write_bitmap,
(table_share->fields + 7) / 8);
DBUG_PRINT("info",("spider copy rnd_bitmap"));
}
}
}
DBUG_VOID_RETURN;
}
bool ha_spider::check_and_start_bulk_update(
spider_bulk_upd_start bulk_upd_start
) {
DBUG_ENTER("ha_spider::check_and_start_bulk_update");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider bulk_update_start=%d",
result_list.bulk_update_start));
if (
result_list.bulk_update_start == SPD_BU_NOT_START ||
(
!result_list.bulk_update_mode &&
bulk_upd_start == SPD_BU_START_BY_BULK_INIT
)
) {
THD *thd = ha_thd();
int bulk_update_mode = spider_param_bulk_update_mode(thd,
share->bulk_update_mode);
/*
longlong split_read = spider_split_read_param(this);
*/
result_list.bulk_update_size = spider_param_bulk_update_size(thd,
share->bulk_update_size);
if (!support_bulk_update_sql())
{
result_list.bulk_update_mode = 0;
DBUG_PRINT("info",("spider result_list.bulk_update_mode=%d 1",
result_list.bulk_update_mode));
/*
} else if (
split_read != 9223372036854775807LL
) {
result_list.bulk_update_mode = 2;
DBUG_PRINT("info",("spider result_list.bulk_update_mode=%d 2",
result_list.bulk_update_mode));
*/
} else {
if (result_list.bulk_update_start == SPD_BU_NOT_START)
{
result_list.bulk_update_mode = bulk_update_mode;
DBUG_PRINT("info",("spider result_list.bulk_update_mode=%d 3",
result_list.bulk_update_mode));
} else {
result_list.bulk_update_mode = 1;
DBUG_PRINT("info",("spider result_list.bulk_update_mode=%d 4",
result_list.bulk_update_mode));
}
}
result_list.bulk_update_start = bulk_upd_start;
DBUG_RETURN(FALSE);
}
DBUG_RETURN(TRUE);
}
int ha_spider::check_and_end_bulk_update(
spider_bulk_upd_start bulk_upd_start
) {
int error_num = 0;
ha_rows dup_key_found = 0;
DBUG_ENTER("ha_spider::check_and_end_bulk_update");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider bulk_update_start=%d",
result_list.bulk_update_start));
DBUG_PRINT("info",("spider bulk_update_mode=%d",
result_list.bulk_update_mode));
if (result_list.bulk_update_start == bulk_upd_start)
{
if (result_list.bulk_update_mode)
error_num = spider_db_bulk_update_end(this, &dup_key_found);
result_list.bulk_update_size = 0;
result_list.bulk_update_mode = 0;
result_list.bulk_update_start = SPD_BU_NOT_START;
}
DBUG_RETURN(error_num);
}
uint ha_spider::check_partitioned()
{
uint part_num;
DBUG_ENTER("ha_spider::check_partitioned");
DBUG_PRINT("info",("spider this=%p", this));
table->file->get_no_parts("", &part_num);
if (part_num)
DBUG_RETURN(part_num);
TABLE_LIST *tmp_table_list = table->pos_in_table_list;
while ((tmp_table_list = tmp_table_list->parent_l))
{
tmp_table_list->table->file->get_no_parts("", &part_num);
if (part_num)
DBUG_RETURN(part_num);
}
DBUG_RETURN(0);
}
void ha_spider::check_direct_order_limit()
{
DBUG_ENTER("ha_spider::check_direct_order_limit");
DBUG_PRINT("info",("spider this=%p", this));
if (!result_list.check_direct_order_limit)
{
if (spider_check_direct_order_limit(this))
{
result_list.direct_order_limit = TRUE;
} else
result_list.direct_order_limit = FALSE;
spider_set_direct_limit_offset(this);
result_list.check_direct_order_limit = TRUE;
}
DBUG_VOID_RETURN;
}
/********************************************************************
* Check whether the current query is a SELECT DISTINCT using an
* index in a non-partitioned Spider configuration, with a
* projection list that consists solely of the first key prefix
* column.
*
* For a SELECT DISTINCT query using an index in a non-partitioned
* Spider configuration, with a projection list that consists
* solely of the first key prefix, set the internal row retrieval
* limit to avoid visiting each row multiple times.
********************************************************************/
void ha_spider::check_distinct_key_query()
{
DBUG_ENTER( "ha_spider::check_distinct_key_query" );
if ( result_list.direct_distinct && !partition_handler->handlers &&
result_list.keyread && result_list.check_direct_order_limit )
{
// SELECT DISTINCT query using an index in a non-partitioned configuration
KEY_PART_INFO* key_part = result_list.key_info->key_part;
Field* key_field = key_part->field;
if ( is_sole_projection_field( key_field->field_index ) )
{
// Projection list consists solely of the first key prefix column
// Set the internal row retrieval limit to avoid visiting each row
// multiple times. This fixes a Spider performance bug that
// caused each row to be visited multiple times.
result_list.internal_limit = 1;
}
}
DBUG_VOID_RETURN;
}
/********************************************************************
* Determine whether the current query's projection list
* consists solely of the specified column.
*
* Params IN - field_index:
* Field index of the column of interest within
* its table.
*
* Returns TRUE - if the query's projection list consists
* solely of the specified column.
* FALSE - otherwise.
********************************************************************/
bool ha_spider::is_sole_projection_field(
uint16 field_index
) {
// NOTE: It is assumed that spider_db_append_select_columns() has already been called
// to build the bitmap of projection fields
bool is_ha_sole_projection_field;
uint loop_index, dbton_id;
spider_db_handler* dbton_hdl;
DBUG_ENTER( "ha_spider::is_sole_projection_field" );
for ( loop_index = 0; loop_index < share->use_sql_dbton_count; loop_index++ )
{
dbton_id = share->use_sql_dbton_ids[ loop_index ];
dbton_hdl = dbton_handler[ dbton_id ];
if ( dbton_hdl->first_link_idx >= 0 )
{
is_ha_sole_projection_field = dbton_hdl->is_sole_projection_field( field_index );
if ( !is_ha_sole_projection_field )
{
DBUG_RETURN( FALSE );
}
}
}
DBUG_RETURN( TRUE );
}
int ha_spider::drop_tmp_tables()
{
int error_num = 0, need_mon;
DBUG_ENTER("ha_spider::drop_tmp_tables");
DBUG_PRINT("info",("spider this=%p", this));
if (result_list.tmp_tables_created)
{
int roop_start, roop_end, roop_count, tmp_lock_mode;
tmp_lock_mode = spider_conn_lock_mode(this);
if (tmp_lock_mode)
{
/* "for update" or "lock in share mode" */
roop_start = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
roop_end = share->link_count;
} else {
roop_start = search_link_idx;
roop_end = search_link_idx + 1;
}
for (roop_count = roop_start; roop_count < roop_end;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (spider_bit_is_set(result_list.tmp_table_created, roop_count))
{
uint dbton_id = share->sql_dbton_ids[roop_count];
spider_db_handler *dbton_hdl = dbton_handler[dbton_id];
SPIDER_CONN *conn = conns[roop_count];
if ((error_num = dbton_hdl->set_sql_for_exec(
SPIDER_SQL_TYPE_TMP_SQL, roop_count)))
{
DBUG_RETURN(error_num);
}
spider_lock_before_query(conn, &need_mon);
/* todo: double check the logic here w.r.t. tmp_error_num vs error_num */
if ((error_num = spider_db_set_names(this, conn, roop_count)))
{
spider_unlock_after_query(conn, 0);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
}
if (!error_num)
{
spider_conn_set_timeout_from_share(conn, roop_count,
wide_handler->trx->thd, share);
if (dbton_hdl->execute_sql(
SPIDER_SQL_TYPE_DROP_TMP_TABLE_SQL,
conn,
-1,
&need_mons[roop_count])
) {
error_num= spider_unlock_after_query_1(conn);
error_num= spider_maybe_ping_1(this, roop_count, error_num);
} else {
spider_unlock_after_query(conn, 0);
}
}
spider_clear_bit(result_list.tmp_table_created, roop_count);
}
}
result_list.tmp_tables_created = FALSE;
}
DBUG_RETURN(error_num);
}
void ha_spider::set_error_mode()
{
THD *thd = ha_thd();
DBUG_ENTER("ha_spider::set_error_mode");
DBUG_PRINT("info",("spider this=%p", this));
switch (thd_sql_command(thd))
{
case SQLCOM_SELECT:
case SQLCOM_SHOW_DATABASES:
case SQLCOM_SHOW_TABLES:
case SQLCOM_SHOW_FIELDS:
case SQLCOM_SHOW_KEYS:
case SQLCOM_SHOW_VARIABLES:
case SQLCOM_SHOW_STATUS:
case SQLCOM_SHOW_ENGINE_LOGS:
case SQLCOM_SHOW_ENGINE_STATUS:
case SQLCOM_SHOW_ENGINE_MUTEX:
case SQLCOM_SHOW_PROCESSLIST:
case SQLCOM_SHOW_BINLOG_STAT:
case SQLCOM_SHOW_SLAVE_STAT:
case SQLCOM_SHOW_GRANTS:
case SQLCOM_SHOW_CREATE:
case SQLCOM_SHOW_CHARSETS:
case SQLCOM_SHOW_COLLATIONS:
case SQLCOM_SHOW_CREATE_DB:
case SQLCOM_SHOW_TABLE_STATUS:
case SQLCOM_SHOW_TRIGGERS:
case SQLCOM_CHANGE_DB:
case SQLCOM_HA_OPEN:
case SQLCOM_HA_CLOSE:
case SQLCOM_HA_READ:
case SQLCOM_SHOW_SLAVE_HOSTS:
case SQLCOM_SHOW_BINLOG_EVENTS:
case SQLCOM_SHOW_WARNS:
case SQLCOM_EMPTY_QUERY:
case SQLCOM_SHOW_ERRORS:
case SQLCOM_SHOW_STORAGE_ENGINES:
case SQLCOM_SHOW_PRIVILEGES:
case SQLCOM_HELP:
case SQLCOM_SHOW_CREATE_PROC:
case SQLCOM_SHOW_CREATE_FUNC:
case SQLCOM_SHOW_STATUS_PROC:
case SQLCOM_SHOW_STATUS_FUNC:
case SQLCOM_SHOW_PROC_CODE:
case SQLCOM_SHOW_FUNC_CODE:
case SQLCOM_SHOW_AUTHORS:
case SQLCOM_SHOW_PLUGINS:
case SQLCOM_SHOW_CONTRIBUTORS:
case SQLCOM_SHOW_CREATE_EVENT:
case SQLCOM_SHOW_EVENTS:
case SQLCOM_SHOW_CREATE_TRIGGER:
case SQLCOM_SHOW_PROFILE:
case SQLCOM_SHOW_PROFILES:
error_mode = spider_param_error_read_mode(thd, share->error_read_mode);
DBUG_PRINT("info",("spider read error_mode=%d", error_mode));
break;
default:
error_mode = spider_param_error_write_mode(thd, share->error_write_mode);
DBUG_PRINT("info",("spider write error_mode=%d", error_mode));
break;
}
DBUG_VOID_RETURN;
}
void ha_spider::backup_error_status()
{
THD *thd = ha_thd();
DBUG_ENTER("ha_spider::backup_error_status");
if (thd)
da_status = thd->is_error();
DBUG_VOID_RETURN;
}
int ha_spider::check_error_mode(
int error_num
) {
THD *thd = ha_thd();
DBUG_ENTER("ha_spider::check_error_mode");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider error_num=%d", error_num));
if (!thd || !error_mode)
DBUG_RETURN(error_num);
DBUG_PRINT("info",("spider error reset"));
SPIDER_RESTORE_DASTATUS;
DBUG_RETURN(0);
}
int ha_spider::check_error_mode_eof(
int error_num
) {
DBUG_ENTER("ha_spider::check_error_mode_eof");
DBUG_PRINT("info",("spider this=%p", this));
DBUG_PRINT("info",("spider error_num=%d", error_num));
if (error_num == HA_ERR_END_OF_FILE)
DBUG_RETURN(HA_ERR_END_OF_FILE);
if (check_error_mode(error_num))
DBUG_RETURN(error_num);
DBUG_PRINT("info",("spider result_list.finish_flg = TRUE"));
result_list.finish_flg = TRUE;
if (result_list.current)
{
DBUG_PRINT("info",("spider result_list.current->finish_flg = TRUE"));
result_list.current->finish_flg = TRUE;
}
table->status = STATUS_NOT_FOUND;
DBUG_RETURN(HA_ERR_END_OF_FILE);
}
void ha_spider::check_pre_call(
bool use_parallel
) {
THD* thd = ha_thd();
LEX *lex = thd->lex;
st_select_lex *select_lex = spider_get_select_lex(this);
int skip_parallel_search =
spider_param_skip_parallel_search(thd, share->skip_parallel_search);
DBUG_ENTER("ha_spider::check_pre_call");
DBUG_PRINT("info",("spider this=%p", this));
if (
(
(skip_parallel_search & 1) &&
lex->sql_command != SQLCOM_SELECT // such like insert .. select ..
) ||
(
(skip_parallel_search & 2) &&
lex->sql_cache == LEX::SQL_NO_CACHE // for mysqldump
)
) {
use_pre_call = FALSE;
DBUG_VOID_RETURN;
}
if (
use_parallel &&
thd->query_id != partition_handler->parallel_search_query_id
) {
partition_handler->parallel_search_query_id = thd->query_id;
++wide_handler->trx->parallel_search_count;
}
use_pre_call = use_parallel;
if (!use_pre_call)
{
longlong select_limit;
longlong offset_limit;
spider_get_select_limit_from_select_lex(
select_lex, &select_limit, &offset_limit);
if (
select_lex &&
(!select_lex->limit_params.explicit_limit || !select_limit)
) {
use_pre_call = TRUE;
}
}
DBUG_VOID_RETURN;
}
void ha_spider::check_insert_dup_update_pushdown()
{
THD *thd = wide_handler->trx->thd;
DBUG_ENTER("ha_spider::check_insert_dup_update_pushdown");
DBUG_PRINT("info",("spider this=%p", this));
if (!spider_param_direct_dup_insert(thd, share->direct_dup_insert))
{
DBUG_PRINT("info",("spider FALSE by direct_dup_insert"));
DBUG_VOID_RETURN;
}
wide_handler->direct_update_fields = &thd->lex->update_list;
wide_handler->direct_update_values = &thd->lex->value_list;
if (!append_dup_update_pushdown_sql_part(NULL, 0))
{
result_list.insert_dup_update_pushdown = TRUE;
}
DBUG_VOID_RETURN;
}
void ha_spider::sync_from_clone_source_base(
ha_spider *spider
) {
uint roop_count2, dbton_id;
spider_db_handler *dbton_hdl, *dbton_hdl2;
DBUG_ENTER("ha_spider::sync_from_clone_source_base");
for (roop_count2 = 0; roop_count2 < share->use_dbton_count; roop_count2++)
{
dbton_id = share->use_dbton_ids[roop_count2];
dbton_hdl = dbton_handler[dbton_id];
dbton_hdl2 = spider->dbton_handler[dbton_id];
dbton_hdl->first_link_idx = dbton_hdl2->first_link_idx;
dbton_hdl->strict_group_by = dbton_hdl2->strict_group_by;
}
DBUG_VOID_RETURN;
}
/*
Set the initial values for each dbton_handler's first_link_idx and
strict_group_by.
First, reset first_link_idx to -1.
Then, for each active remote server, if the corresponding
dbton_handler has not been set yet (first_link_idx == -1), set its
first_link_idx to be the index of the connection.
*/
void ha_spider::set_first_link_idx()
{
int roop_count, all_link_idx;
uint roop_count2, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::set_first_link_idx");
for (roop_count2 = 0; roop_count2 < share->use_dbton_count; roop_count2++)
{
dbton_id = share->use_dbton_ids[roop_count2];
dbton_hdl = dbton_handler[dbton_id];
dbton_hdl->first_link_idx = -1;
dbton_hdl->strict_group_by = FALSE;
}
for (
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count, SPIDER_LINK_STATUS_RECOVERY);
roop_count < (int) share->link_count;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
all_link_idx = conn_link_idx[roop_count];
dbton_id = share->sql_dbton_ids[all_link_idx];
if (dbton_id < SPIDER_DBTON_SIZE)
{
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx == -1)
{
dbton_hdl->first_link_idx = roop_count;
}
if (share->strict_group_bys[all_link_idx])
{
dbton_hdl->strict_group_by = TRUE;
}
}
}
DBUG_VOID_RETURN;
}
/*
Reset the initial values for each dbton_handler's first_link_idx to
-1.
Also, set the search_link_idx'th active server's first_link_idx to
search_link_idx.
search_link_idx is commonly randomly set using
spider_conn_first_link_idx - see the commentary of that function.
*/
void ha_spider::reset_first_link_idx()
{
int all_link_idx;
uint roop_count2, dbton_id;
spider_db_handler *dbton_hdl;
int lock_mode = spider_conn_lock_mode(this);
DBUG_ENTER("ha_spider::reset_first_link_idx");
if (!lock_mode)
{
DBUG_PRINT("info",("spider use only search_link_idx"));
for (roop_count2 = 0; roop_count2 < share->use_dbton_count; roop_count2++)
{
dbton_id = share->use_dbton_ids[roop_count2];
dbton_hdl = dbton_handler[dbton_id];
dbton_hdl->first_link_idx = -1;
}
all_link_idx = conn_link_idx[search_link_idx];
dbton_id = share->sql_dbton_ids[all_link_idx];
if (dbton_id < SPIDER_DBTON_SIZE)
{
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx == -1)
{
dbton_hdl->first_link_idx = search_link_idx;
}
}
}
DBUG_VOID_RETURN;
}
int ha_spider::reset_sql_sql(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
DBUG_ENTER("ha_spider::reset_sql_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
if ((error_num = dbton_handler[dbton_id]->reset_sql(sql_type)))
{
DBUG_RETURN(error_num);
}
}
if (sql_type & SPIDER_SQL_TYPE_BULK_UPDATE_SQL)
{
for (roop_count = 0; roop_count < share->link_count; roop_count++)
{
result_list.update_sqls[roop_count].length(0);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_tmp_table_and_sql_for_bka(
const key_range *start_key
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_tmp_table_and_sql_for_bka");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_tmp_table_and_sql_for_bka(start_key))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::reuse_tmp_table_and_sql_for_bka()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::reuse_tmp_table_and_sql_for_bka");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->reuse_tmp_table_and_sql_for_bka())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_union_table_and_sql_for_bka(
const key_range *start_key
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_union_table_and_sql_for_bka");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_union_table_and_sql_for_bka(start_key))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::reuse_union_table_and_sql_for_bka()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::reuse_union_table_and_sql_for_bka");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->reuse_union_table_and_sql_for_bka())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_insert_sql_part()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_insert_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_insert_part())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_update_sql_part()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_update_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_update_part())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_update_set_sql_part()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_update_set_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_update_set_part())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_direct_update_set_sql_part()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_direct_update_set_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_direct_update_set_part())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_dup_update_pushdown_sql_part(
const char *alias,
uint alias_length
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_dup_update_pushdown_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_dup_update_pushdown_part(
alias, alias_length))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_update_columns_sql_part(
const char *alias,
uint alias_length
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_update_columns_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_update_columns_part(
alias, alias_length))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::check_update_columns_sql_part()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::check_update_columns_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->check_update_columns_part())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_delete_sql_part()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_delete_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_delete_part())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_select_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_select_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_select_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_table_select_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_table_select_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_table_select_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_key_select_sql_part(
ulong sql_type,
uint idx
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_key_select_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_key_select_part(sql_type, idx))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_minimum_select_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_minimum_select_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_minimum_select_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_from_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_from_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_from_part(sql_type,
dbton_hdl->first_link_idx))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_hint_after_table_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_hint_after_table_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_hint_after_table_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
void ha_spider::set_where_pos_sql(
ulong sql_type
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::set_where_pos_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
dbton_hdl->set_where_pos(sql_type);
}
DBUG_VOID_RETURN;
}
void ha_spider::set_where_to_pos_sql(
ulong sql_type
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::set_where_to_pos_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
dbton_hdl->set_where_to_pos(sql_type);
}
DBUG_VOID_RETURN;
}
int ha_spider::check_item_type_sql(
Item *item
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::check_item_type_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->check_item_type(item))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_values_connector_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_values_connector_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num =
dbton_hdl->append_values_connector_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_values_terminator_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_values_terminator_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num =
dbton_hdl->append_values_terminator_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_union_table_connector_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_union_table_connector_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num =
dbton_hdl->append_union_table_connector_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_union_table_terminator_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_union_table_terminator_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num =
dbton_hdl->append_union_table_terminator_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_key_column_values_sql_part(
const key_range *start_key,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_key_column_values_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num =
dbton_hdl->append_key_column_values_part(start_key, sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_key_column_values_with_name_sql_part(
const key_range *start_key,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_key_column_values_with_name_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num =
dbton_hdl->append_key_column_values_with_name_part(
start_key, sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_key_where_sql_part(
const key_range *start_key,
const key_range *end_key,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_key_where_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_key_where_part(start_key, end_key,
sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_match_where_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_match_where_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_match_where_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_condition_sql_part(
const char *alias,
uint alias_length,
ulong sql_type,
bool test_flg
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_condition_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_condition_part(alias, alias_length,
sql_type, test_flg))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_sum_select_sql_part(
ulong sql_type,
const char *alias,
uint alias_length
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_sum_select_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_sum_select_part(sql_type,
alias, alias_length))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_match_select_sql_part(
ulong sql_type,
const char *alias,
uint alias_length
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_match_select_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_match_select_part(sql_type,
alias, alias_length))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
void ha_spider::set_order_pos_sql(
ulong sql_type
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::set_order_pos_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
dbton_hdl->set_order_pos(sql_type);
}
DBUG_VOID_RETURN;
}
void ha_spider::set_order_to_pos_sql(
ulong sql_type
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::set_order_to_pos_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
dbton_hdl->set_order_to_pos(sql_type);
}
DBUG_VOID_RETURN;
}
int ha_spider::append_group_by_sql_part(
const char *alias,
uint alias_length,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_group_by_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_group_by_part(
alias, alias_length, sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_key_order_for_merge_with_alias_sql_part(
const char *alias,
uint alias_length,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_key_order_for_merge_with_alias_sql_part");
if (result_list.direct_aggregate)
{
st_select_lex *select_lex = spider_get_select_lex(this);
ORDER *group = (ORDER *) select_lex->group_list.first;
if (!group && *(select_lex->join->sum_funcs))
{
DBUG_PRINT("info",("spider skip order by"));
DBUG_RETURN(0);
}
}
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_key_order_for_merge_with_alias_part(
alias, alias_length, sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_key_order_for_direct_order_limit_with_alias_sql_part(
const char *alias,
uint alias_length,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_key_order_for_direct_order_limit_with_alias_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num =
dbton_hdl->append_key_order_for_direct_order_limit_with_alias_part(
alias, alias_length, sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_key_order_with_alias_sql_part(
const char *alias,
uint alias_length,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_key_order_with_alias_sql_part");
if (result_list.direct_aggregate)
{
st_select_lex *select_lex = spider_get_select_lex(this);
ORDER *group = (ORDER *) select_lex->group_list.first;
if (!group && *(select_lex->join->sum_funcs))
{
DBUG_PRINT("info",("spider skip order by"));
DBUG_RETURN(0);
}
}
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_key_order_with_alias_part(
alias, alias_length, sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_limit_sql_part(
longlong offset,
longlong limit,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_limit_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_limit_part(offset, limit, sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::reappend_limit_sql_part(
longlong offset,
longlong limit,
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::reappend_limit_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->reappend_limit_part(offset, limit, sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_insert_terminator_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_insert_terminator_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_insert_terminator_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_insert_values_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_insert_values_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_insert_values_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_into_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_into_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_into_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
void ha_spider::set_insert_to_pos_sql(
ulong sql_type
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::set_insert_to_pos_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
dbton_hdl->set_insert_to_pos(sql_type);
}
DBUG_VOID_RETURN;
}
bool ha_spider::is_bulk_insert_exec_period(
bool bulk_end
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::is_bulk_insert_exec_period");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
dbton_hdl->is_bulk_insert_exec_period(bulk_end)
) {
DBUG_RETURN(TRUE);
}
}
DBUG_RETURN(FALSE);
}
int ha_spider::append_select_lock_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_select_lock_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_select_lock_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_union_all_start_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_union_all_start_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_union_all_start_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_union_all_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_union_all_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_union_all_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_union_all_end_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_union_all_end_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_union_all_end_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_multi_range_cnt_sql_part(
ulong sql_type,
uint multi_range_cnt,
bool with_comma
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_multi_range_cnt_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_multi_range_cnt_part(
sql_type, multi_range_cnt, with_comma))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_multi_range_cnt_with_name_sql_part(
ulong sql_type,
uint multi_range_cnt
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_multi_range_cnt_with_name_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_multi_range_cnt_with_name_part(
sql_type, multi_range_cnt))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_delete_all_rows_sql_part(
ulong sql_type
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_delete_all_rows_sql_part");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_delete_all_rows_part(sql_type))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_update_sql(
const TABLE *table,
my_ptrdiff_t ptr_diff,
bool bulk
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_update");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_update(table, ptr_diff))
) {
DBUG_RETURN(error_num);
}
}
if (!bulk)
{
DBUG_RETURN(0);
}
for (
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
roop_count < share->link_count;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
dbton_id = share->sql_dbton_ids[conn_link_idx[roop_count]];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
dbton_hdl->need_copy_for_update(roop_count)
) {
if ((error_num = dbton_hdl->append_update(table, ptr_diff, roop_count)))
{
DBUG_RETURN(error_num);
}
}
}
DBUG_RETURN(0);
}
int ha_spider::append_delete_sql(
const TABLE *table,
my_ptrdiff_t ptr_diff,
bool bulk
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::append_delete");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->append_delete(table, ptr_diff))
) {
DBUG_RETURN(error_num);
}
}
if (!bulk)
{
DBUG_RETURN(0);
}
for (
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count, SPIDER_LINK_STATUS_RECOVERY);
roop_count < share->link_count;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
dbton_id = share->sql_dbton_ids[conn_link_idx[roop_count]];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
dbton_hdl->need_copy_for_update(roop_count)
) {
if ((error_num = dbton_hdl->append_delete(table, ptr_diff, roop_count)))
{
DBUG_RETURN(error_num);
}
}
}
DBUG_RETURN(0);
}
bool ha_spider::sql_is_filled_up(
ulong sql_type
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::sql_is_filled_up");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
dbton_hdl->sql_is_filled_up(sql_type)
) {
DBUG_RETURN(TRUE);
}
}
DBUG_RETURN(FALSE);
}
bool ha_spider::sql_is_empty(
ulong sql_type
) {
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::sql_is_empty");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
!dbton_hdl->sql_is_empty(sql_type)
) {
DBUG_RETURN(FALSE);
}
}
DBUG_RETURN(TRUE);
}
bool ha_spider::support_multi_split_read_sql()
{
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::support_multi_split_read_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
!dbton_hdl->support_multi_split_read()
) {
DBUG_RETURN(FALSE);
}
}
DBUG_RETURN(TRUE);
}
bool ha_spider::support_bulk_update_sql()
{
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::support_bulk_update_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
!dbton_hdl->support_bulk_update()
) {
DBUG_RETURN(FALSE);
}
}
DBUG_RETURN(TRUE);
}
int ha_spider::bulk_tmp_table_insert()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
TABLE **tmp_table = result_list.upd_tmp_tbls;
DBUG_ENTER("ha_spider::bulk_tmp_table_insert");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->bulk_tmp_table_insert())
) {
DBUG_RETURN(error_num);
}
}
for (roop_count = 0; roop_count < share->link_count; roop_count++)
{
if (tmp_table[roop_count])
{
dbton_id = share->sql_dbton_ids[conn_link_idx[roop_count]];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->bulk_tmp_table_insert(roop_count))
) {
DBUG_RETURN(error_num);
}
}
}
DBUG_RETURN(0);
}
int ha_spider::bulk_tmp_table_end_bulk_insert()
{
int error_num = 0, error_num2;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
TABLE **tmp_table = result_list.upd_tmp_tbls;
DBUG_ENTER("ha_spider::bulk_tmp_table_end_bulk_insert");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num2 = dbton_hdl->bulk_tmp_table_end_bulk_insert())
) {
error_num = error_num2;
}
}
for (roop_count = 0; roop_count < share->link_count; roop_count++)
{
if (tmp_table[roop_count])
{
if (
(error_num2 = tmp_table[roop_count]->file->ha_end_bulk_insert())
) {
error_num = error_num2;
}
}
}
DBUG_RETURN(error_num);
}
int ha_spider::bulk_tmp_table_rnd_init()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
TABLE **tmp_table = result_list.upd_tmp_tbls;
DBUG_ENTER("ha_spider::bulk_tmp_table_rnd_init");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->bulk_tmp_table_rnd_init())
) {
goto error_1;
}
}
for (roop_count = 0; roop_count < share->link_count; roop_count++)
{
if (tmp_table[roop_count])
{
tmp_table[roop_count]->file->extra(HA_EXTRA_CACHE);
if (
(error_num = tmp_table[roop_count]->file->ha_rnd_init(TRUE))
)
goto error_2;
}
}
DBUG_RETURN(0);
error_2:
for (; roop_count > 0; roop_count--)
{
if (tmp_table[roop_count - 1])
{
tmp_table[roop_count - 1]->file->ha_rnd_end();
}
}
roop_count = share->use_sql_dbton_count;
error_1:
for (; roop_count > 0; roop_count--)
{
dbton_id = share->use_sql_dbton_ids[roop_count - 1];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
dbton_hdl->bulk_tmp_table_rnd_end();
}
DBUG_RETURN(error_num);
}
int ha_spider::bulk_tmp_table_rnd_next()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
TABLE **tmp_table = result_list.upd_tmp_tbls;
DBUG_ENTER("ha_spider::bulk_tmp_table_rnd_next");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->bulk_tmp_table_rnd_next())
) {
DBUG_RETURN(error_num);
}
}
for (roop_count = 0; roop_count < share->link_count; roop_count++)
{
if (tmp_table[roop_count])
{
if (
!(error_num = tmp_table[roop_count]->file->ha_rnd_next(
tmp_table[roop_count]->record[0]))
) {
DBUG_RETURN(error_num);
}
}
}
DBUG_RETURN(0);
}
int ha_spider::bulk_tmp_table_rnd_end()
{
int error_num = 0, error_num2;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
TABLE **tmp_table = result_list.upd_tmp_tbls;
DBUG_ENTER("ha_spider::bulk_tmp_table_rnd_end");
for (roop_count = share->link_count; roop_count > 0; roop_count--)
{
if (tmp_table[roop_count - 1])
{
if ((error_num2 = tmp_table[roop_count - 1]->file->ha_rnd_end()))
{
error_num = error_num2;
}
}
}
for (roop_count = share->use_sql_dbton_count; roop_count > 0; roop_count--)
{
dbton_id = share->use_sql_dbton_ids[roop_count - 1];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num2 = dbton_hdl->bulk_tmp_table_rnd_end())
) {
error_num = error_num2;
}
}
DBUG_RETURN(error_num);
}
int ha_spider::mk_bulk_tmp_table_and_bulk_start()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
TABLE **tmp_table = result_list.upd_tmp_tbls;
DBUG_ENTER("ha_spider::mk_bulk_tmp_table_and_bulk_start");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
{
if (dbton_hdl->bulk_tmp_table_created())
{
DBUG_RETURN(0);
} else {
break;
}
}
}
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->mk_bulk_tmp_table_and_bulk_start())
) {
goto error_1;
}
}
for (roop_count = 0; roop_count < share->link_count; roop_count++)
{
dbton_id = share->sql_dbton_ids[conn_link_idx[roop_count]];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
dbton_hdl->need_copy_for_update(roop_count)
) {
LEX_CSTRING field_name = {STRING_WITH_LEN("a")};
if (
!tmp_table[roop_count] &&
!(tmp_table[roop_count] = spider_mk_sys_tmp_table(
wide_handler->trx->thd, table,
&result_list.upd_tmp_tbl_prms[roop_count],
&field_name, result_list.update_sqls[roop_count].charset()))
)
{
error_num = HA_ERR_OUT_OF_MEM;
goto error_2;
}
tmp_table[roop_count]->file->extra(HA_EXTRA_WRITE_CACHE);
tmp_table[roop_count]->file->ha_start_bulk_insert((ha_rows) 0);
}
}
DBUG_RETURN(0);
error_2:
for (; roop_count > 0; roop_count--)
{
if (tmp_table[roop_count - 1])
{
tmp_table[roop_count - 1]->file->ha_end_bulk_insert();
spider_rm_sys_tmp_table(wide_handler->trx->thd,
tmp_table[roop_count - 1],
&result_list.upd_tmp_tbl_prms[roop_count - 1]);
tmp_table[roop_count - 1] = NULL;
}
}
roop_count = share->use_sql_dbton_count;
error_1:
for (; roop_count > 0; roop_count--)
{
dbton_id = share->use_sql_dbton_ids[roop_count - 1];
if (dbton_hdl->first_link_idx >= 0)
{
dbton_handler[dbton_id]->bulk_tmp_table_end_bulk_insert();
dbton_handler[dbton_id]->rm_bulk_tmp_table();
}
}
DBUG_RETURN(error_num);
}
void ha_spider::rm_bulk_tmp_table()
{
uint roop_count, dbton_id;
TABLE **tmp_table = result_list.upd_tmp_tbls;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::bulk_tmp_table_rnd_end");
for (roop_count = share->link_count; roop_count > 0; roop_count--)
{
if (tmp_table[roop_count - 1])
{
spider_rm_sys_tmp_table(wide_handler->trx->thd,
tmp_table[roop_count - 1],
&result_list.upd_tmp_tbl_prms[roop_count - 1]);
tmp_table[roop_count - 1] = NULL;
}
}
for (roop_count = share->use_sql_dbton_count; roop_count > 0; roop_count--)
{
dbton_id = share->use_sql_dbton_ids[roop_count - 1];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
dbton_hdl->rm_bulk_tmp_table();
}
DBUG_VOID_RETURN;
}
bool ha_spider::bulk_tmp_table_created()
{
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::bulk_tmp_table_created");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (dbton_hdl->first_link_idx >= 0)
{
if (dbton_hdl->bulk_tmp_table_created())
{
DBUG_RETURN(TRUE);
}
}
}
DBUG_RETURN(FALSE);
}
int ha_spider::print_item_type(
Item *item,
spider_string *str,
const char *alias,
uint alias_length
) {
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::print_item_type");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = spider_db_print_item_type(item, NULL, this, str,
alias, alias_length, dbton_id, FALSE, NULL))
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::init_union_table_name_pos_sql()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::init_union_table_name_pos_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->init_union_table_name_pos())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::set_union_table_name_pos_sql()
{
int error_num;
uint roop_count, dbton_id;
spider_db_handler *dbton_hdl;
DBUG_ENTER("ha_spider::set_union_table_name_pos_sql");
for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
{
dbton_id = share->use_sql_dbton_ids[roop_count];
dbton_hdl = dbton_handler[dbton_id];
if (
dbton_hdl->first_link_idx >= 0 &&
(error_num = dbton_hdl->set_union_table_name_pos())
) {
DBUG_RETURN(error_num);
}
}
DBUG_RETURN(0);
}
int ha_spider::append_lock_tables_list()
{
int error_num, roop_count;
DBUG_ENTER("ha_spider::append_lock_tables_list");
DBUG_PRINT("info",("spider lock_table_type=%u",
wide_handler->lock_table_type));
if (!(wide_handler->trx = spider_get_trx(ha_thd(), TRUE, &error_num)))
DBUG_RETURN(error_num);
if ((error_num = spider_check_trx_and_get_conn(wide_handler->trx->thd, this)))
{
DBUG_RETURN(error_num);
}
if (wide_handler->lock_table_type == 1)
{
for (
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
roop_count < (int) share->link_count;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
SPIDER_CONN *conn = conns[roop_count];
int appended = 0;
if ((error_num = dbton_handler[conn->dbton_id]->
append_lock_tables_list(conn, roop_count, &appended)))
{
DBUG_RETURN(error_num);
}
if (appended)
{
conn->table_lock = 2;
}
}
} else if (wide_handler->lock_table_type == 2)
{
for (
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
roop_count < (int) share->link_count;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (
conns[roop_count] &&
conns[roop_count]->table_lock != 1 &&
spider_param_semi_table_lock(wide_handler->trx->thd,
share->semi_table_lock)
) {
SPIDER_CONN *conn = conns[roop_count];
int appended = 0;
if ((error_num = dbton_handler[conn->dbton_id]->
append_lock_tables_list(conn, roop_count, &appended)))
{
DBUG_RETURN(error_num);
}
if (appended)
{
conn->table_lock = 3;
}
}
}
}
DBUG_RETURN(0);
}
int ha_spider::lock_tables()
{
int error_num, roop_count;
DBUG_ENTER("ha_spider::lock_tables");
DBUG_PRINT("info",("spider lock_table_type=%u",
wide_handler->lock_table_type));
if (!conns[search_link_idx])
{
my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
}
for (
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
roop_count < (int) share->link_count;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
if (wide_handler->sql_command != SQLCOM_UNLOCK_TABLES)
{
DBUG_PRINT("info",("spider conns[%d]->join_trx=%u",
roop_count, conns[roop_count]->join_trx));
if (
(!conns[roop_count]->join_trx &&
(error_num = spider_internal_start_trx_for_connection(this,
conns[roop_count],
roop_count)))
) {
DBUG_RETURN(spider_maybe_ping(this, roop_count, error_num));
}
reset_first_link_idx();
}
if (conns[roop_count]->table_lock >= 2)
{
if (
conns[roop_count]->db_conn->have_lock_table_list() &&
(error_num = spider_db_lock_tables(this, roop_count))
) {
conns[roop_count]->table_lock = 0;
DBUG_RETURN(spider_maybe_ping(this, roop_count, error_num));
}
if (conns[roop_count]->table_lock == 2)
conns[roop_count]->table_lock = 1;
} else if (wide_handler->sql_command == SQLCOM_UNLOCK_TABLES ||
spider_param_internal_unlock(wide_handler->trx->thd) == 1)
{
if (conns[roop_count]->table_lock == 1)
{
conns[roop_count]->table_lock = 0;
if (!conns[roop_count]->trx_start)
conns[roop_count]->disable_reconnect = FALSE;
if ((error_num = spider_db_unlock_tables(this, roop_count)))
{
DBUG_RETURN(spider_maybe_ping(this, roop_count, error_num));
}
}
}
}
DBUG_RETURN(0);
}
int ha_spider::dml_init()
{
int error_num, roop_count;
SPIDER_TRX *trx = wide_handler->trx;
THD *thd = trx->thd;
bool sync_trx_isolation = spider_param_sync_trx_isolation(thd);
DBUG_ENTER("ha_spider::dml_init");
if (wide_handler->lock_mode == -2)
{
wide_handler->lock_mode = spider_param_selupd_lock_mode(thd,
share->selupd_lock_mode);
}
if ((error_num = check_access_kind_for_connection(thd,
(wide_handler->lock_type >= TL_WRITE_ALLOW_WRITE))))
{
DBUG_RETURN(error_num);
}
if (!conns[search_link_idx])
{
my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
}
if (wide_handler->sql_command == SQLCOM_TRUNCATE)
DBUG_RETURN(0);
for (
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, -1, share->link_count,
SPIDER_LINK_STATUS_RECOVERY);
roop_count < (int) share->link_count;
roop_count = spider_conn_link_idx_next(share->link_statuses,
conn_link_idx, roop_count, share->link_count,
SPIDER_LINK_STATUS_RECOVERY)
) {
DBUG_PRINT("info",("spider conns[%d]->join_trx=%u",
roop_count, conns[roop_count]->join_trx));
if (
(!conns[roop_count]->join_trx &&
(error_num = spider_internal_start_trx_for_connection(this,
conns[roop_count],
roop_count)))
) {
DBUG_RETURN(spider_maybe_ping(this, roop_count, error_num));
}
reset_first_link_idx();
if (
conns[roop_count]->semi_trx_isolation == -2 &&
conns[roop_count]->semi_trx_isolation_chk == TRUE &&
sync_trx_isolation &&
spider_param_semi_trx_isolation(trx->thd) >= 0
) {
spider_conn_queue_semi_trx_isolation(conns[roop_count],
spider_param_semi_trx_isolation(trx->thd));
} else {
if (sync_trx_isolation)
{
if ((error_num = spider_check_and_set_trx_isolation(
conns[roop_count], &need_mons[roop_count])))
{
DBUG_RETURN(spider_maybe_ping(this, roop_count, error_num));
}
}
conns[roop_count]->semi_trx_isolation = -1;
}
}
if (wide_handler->insert_with_update)
{
check_insert_dup_update_pushdown();
}
dml_inited = TRUE;
DBUG_RETURN(0);
}
Reference in a new issue View git blame Copy permalink