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mariadb/storage/maria/ma_create.c
Marko Mäkelä 7d4077cc11 Merge 10.5 into 10.6
2024-11-29 12:37:46 +02:00

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/* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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 */
/* Create a MARIA table */
#include "ma_ftdefs.h"
#include "ma_sp_defs.h"
#include <my_bit.h>
#include "ma_blockrec.h"
#include "trnman_public.h"
#include "trnman.h"
#include "ma_crypt.h"
#ifdef _WIN32
#include <fcntl.h>
#endif
#include <m_ctype.h>
static int compare_columns(const void *a, const void *b);
static ulonglong update_tot_length(ulonglong tot_length, ulonglong max_rows, uint length)
{
ulonglong tot_length_part;
if (tot_length == ULONGLONG_MAX)
return ULONGLONG_MAX;
tot_length_part= (max_rows/(ulong) ((maria_block_size -
MAX_KEYPAGE_HEADER_SIZE - KEYPAGE_CHECKSUM_SIZE)/
(length*2)));
if (tot_length_part >= ULONGLONG_MAX / maria_block_size)
return ULONGLONG_MAX;
if (tot_length > ULONGLONG_MAX - tot_length_part * maria_block_size)
return ULONGLONG_MAX;
return tot_length + tot_length_part * maria_block_size;
}
/*
Old options is used when recreating database, from maria_chk
*/
int maria_create(const char *name, enum data_file_type datafile_type,
uint keys,MARIA_KEYDEF *keydefs,
uint columns, MARIA_COLUMNDEF *columndef,
uint uniques, MARIA_UNIQUEDEF *uniquedefs,
MARIA_CREATE_INFO *ci,uint flags)
{
uint i,j;
File UNINIT_VAR(dfile), UNINIT_VAR(file);
int errpos,save_errno, create_mode= O_RDWR | O_TRUNC, res;
myf create_flag, common_flag= MY_WME, sync_dir= 0;
uint length,max_key_length,packed,pack_bytes,pointer,real_length_diff,
key_length,info_length,key_segs,options,min_key_length,
base_pos,long_varchar_count,
unique_key_parts,fulltext_keys,offset, not_block_record_extra_length;
uint max_field_lengths, extra_header_size, column_nr;
uint internal_table= flags & HA_CREATE_INTERNAL_TABLE;
ulong reclength, real_reclength,min_pack_length;
char kfilename[FN_REFLEN], klinkname[FN_REFLEN], *klinkname_ptr= 0;
char dfilename[FN_REFLEN], dlinkname[FN_REFLEN], *dlinkname_ptr= 0;
ulong pack_reclength;
ulonglong tot_length,max_rows, tmp;
enum en_fieldtype type;
enum data_file_type org_datafile_type= datafile_type;
MARIA_SHARE share;
TRN tmp_transaction_object;
MARIA_KEYDEF *keydef,tmp_keydef;
MARIA_UNIQUEDEF *uniquedef;
HA_KEYSEG *keyseg,tmp_keyseg;
MARIA_COLUMNDEF *column, *end_column;
double *rec_per_key_part;
ulong *nulls_per_key_part;
uint16 *column_array;
my_off_t key_root[HA_MAX_POSSIBLE_KEY], kfile_size_before_extension;
MARIA_CREATE_INFO tmp_create_info;
my_bool tmp_table= FALSE; /* cache for presence of HA_OPTION_TMP_TABLE */
my_bool forced_packed;
uchar *log_data= NULL;
my_bool encrypted= ci->encrypted && datafile_type == BLOCK_RECORD;
my_bool insert_order= MY_TEST(flags & HA_PRESERVE_INSERT_ORDER);
uint crypt_page_header_space= 0;
DBUG_ENTER("maria_create");
DBUG_PRINT("enter", ("keys: %u columns: %u uniques: %u flags: %u",
keys, columns, uniques, flags));
DBUG_ASSERT(maria_inited);
if ((flags & HA_CREATE_TMP_TABLE) && !(flags & HA_CREATE_GLOBAL_TMP_TABLE))
common_flag|= MY_THREAD_SPECIFIC;
if (!ci)
{
bzero((char*) &tmp_create_info,sizeof(tmp_create_info));
ci=&tmp_create_info;
}
if (keys + uniques > MARIA_MAX_KEY)
{
DBUG_RETURN(my_errno=HA_WRONG_CREATE_OPTION);
}
errpos=0;
options=0;
bzero((uchar*) &share,sizeof(share));
if (flags & HA_DONT_TOUCH_DATA)
{
/* We come here from recreate table */
org_datafile_type= ci->org_data_file_type;
if (!(ci->old_options & HA_OPTION_TEMP_COMPRESS_RECORD))
options= (ci->old_options &
(HA_OPTION_COMPRESS_RECORD | HA_OPTION_PACK_RECORD |
HA_OPTION_READ_ONLY_DATA | HA_OPTION_CHECKSUM |
HA_OPTION_TMP_TABLE | HA_OPTION_DELAY_KEY_WRITE |
HA_OPTION_LONG_BLOB_PTR | HA_OPTION_PAGE_CHECKSUM));
else
{
/* Uncompressing rows */
options= (ci->old_options &
(HA_OPTION_CHECKSUM | HA_OPTION_TMP_TABLE |
HA_OPTION_DELAY_KEY_WRITE | HA_OPTION_LONG_BLOB_PTR |
HA_OPTION_PAGE_CHECKSUM));
}
}
else
{
/* Transactional tables must be of type BLOCK_RECORD */
if (ci->transactional)
datafile_type= BLOCK_RECORD;
}
if (!(rec_per_key_part=
(double*) my_malloc(PSI_INSTRUMENT_ME,
(keys + uniques)*HA_MAX_KEY_SEG*sizeof(double) +
(keys + uniques)*HA_MAX_KEY_SEG*sizeof(ulong) +
sizeof(uint16) * columns,
MYF(common_flag | MY_ZEROFILL))))
DBUG_RETURN(my_errno);
nulls_per_key_part= (ulong*) (rec_per_key_part +
(keys + uniques) * HA_MAX_KEY_SEG);
column_array= (uint16*) (nulls_per_key_part +
(keys + uniques) * HA_MAX_KEY_SEG);
/* Start by checking fields and field-types used */
long_varchar_count=packed= not_block_record_extra_length=
pack_reclength= max_field_lengths= 0;
reclength= min_pack_length= ci->null_bytes;
forced_packed= 0;
column_nr= 0;
if (encrypted)
{
DBUG_ASSERT(datafile_type == BLOCK_RECORD);
crypt_page_header_space= ma_crypt_get_data_page_header_space();
}
for (column= columndef, end_column= column + columns ;
column != end_column ;
column++)
{
/* Fill in not used struct parts */
column->column_nr= column_nr++;
column->offset= reclength;
column->empty_pos= 0;
column->empty_bit= 0;
column->fill_length= column->length;
if (column->null_bit)
options|= HA_OPTION_NULL_FIELDS;
reclength+= column->length;
type= column->type;
if (datafile_type == BLOCK_RECORD)
{
if (type == FIELD_SKIP_PRESPACE)
type= column->type= FIELD_NORMAL; /* SKIP_PRESPACE not supported */
if (type == FIELD_NORMAL &&
column->length > FULL_PAGE_SIZE2(maria_block_size,
crypt_page_header_space))
{
/* FIELD_NORMAL can't be split over many blocks, convert to a CHAR */
type= column->type= FIELD_SKIP_ENDSPACE;
}
}
if (type != FIELD_NORMAL && type != FIELD_CHECK)
{
column->empty_pos= packed/8;
column->empty_bit= (1 << (packed & 7));
if (type == FIELD_BLOB)
{
forced_packed= 1;
packed++;
share.base.blobs++;
if (pack_reclength != INT_MAX32)
{
if (column->length == 4+portable_sizeof_char_ptr)
pack_reclength= INT_MAX32;
else
{
/* Add max possible blob length */
pack_reclength+= (1 << ((column->length-
portable_sizeof_char_ptr)*8));
}
}
max_field_lengths+= (column->length - portable_sizeof_char_ptr);
}
else if (type == FIELD_SKIP_PRESPACE ||
type == FIELD_SKIP_ENDSPACE)
{
forced_packed= 1;
max_field_lengths+= column->length > 255 ? 2 : 1;
not_block_record_extra_length++;
packed++;
}
else if (type == FIELD_VARCHAR)
{
pack_reclength++;
not_block_record_extra_length++;
max_field_lengths++;
if (datafile_type != DYNAMIC_RECORD)
packed++;
column->fill_length= 1;
options|= HA_OPTION_NULL_FIELDS; /* Use ma_checksum() */
/* We must test for 257 as length includes pack-length */
if (MY_TEST(column->length >= 257))
{
long_varchar_count++;
max_field_lengths++;
column->fill_length= 2;
}
}
else if (type == FIELD_SKIP_ZERO)
packed++;
else
{
if (!column->null_bit)
min_pack_length+= column->length;
else
{
/* Only BLOCK_RECORD skips NULL fields for all field values */
not_block_record_extra_length+= column->length;
}
column->empty_pos= 0;
column->empty_bit= 0;
}
}
else /* FIELD_NORMAL */
{
if (!column->null_bit)
{
min_pack_length+= column->length;
share.base.fixed_not_null_fields++;
share.base.fixed_not_null_fields_length+= column->length;
}
else
not_block_record_extra_length+= column->length;
}
}
if (datafile_type == STATIC_RECORD && forced_packed)
{
/* Can't use fixed length records, revert to block records */
datafile_type= BLOCK_RECORD;
}
if (datafile_type == NO_RECORD && uniques)
{
/* Can't do unique without data, revert to block records */
datafile_type= BLOCK_RECORD;
}
if (encrypted)
{
/*
datafile_type is set (finally?)
update encryption that is only supported for BLOCK_RECORD
*/
if (datafile_type != BLOCK_RECORD)
{
encrypted= FALSE;
crypt_page_header_space= 0;
}
}
if (datafile_type == DYNAMIC_RECORD)
options|= HA_OPTION_PACK_RECORD; /* Must use packed records */
if (datafile_type == STATIC_RECORD || datafile_type == NO_RECORD)
{
/* We can't use checksum with static length rows */
flags&= ~HA_CREATE_CHECKSUM;
options&= ~HA_OPTION_CHECKSUM;
min_pack_length= reclength;
packed= 0;
}
else if (datafile_type != BLOCK_RECORD)
min_pack_length+= not_block_record_extra_length;
else
min_pack_length+= 5; /* Min row overhead */
if (flags & HA_CREATE_TMP_TABLE)
{
options|= HA_OPTION_TMP_TABLE;
tmp_table= TRUE;
create_mode|= O_NOFOLLOW | (internal_table ? 0 : O_EXCL);
/* "CREATE TEMPORARY" tables are not crash-safe (dropped at restart) */
ci->transactional= FALSE;
flags&= ~HA_CREATE_PAGE_CHECKSUM;
}
share.base.null_bytes= ci->null_bytes;
share.base.original_null_bytes= ci->null_bytes;
share.base.born_transactional= ci->transactional;
share.base.max_field_lengths= max_field_lengths;
share.base.field_offsets= 0; /* for future */
share.base.compression_algorithm= ci->compression_algorithm;
share.base.s3_block_size= ci->s3_block_size;
if (flags & HA_CREATE_CHECKSUM || (options & HA_OPTION_CHECKSUM))
{
options|= HA_OPTION_CHECKSUM;
min_pack_length++;
pack_reclength++;
}
if (pack_reclength < INT_MAX32)
pack_reclength+= max_field_lengths + long_varchar_count;
else
pack_reclength= INT_MAX32;
if (flags & HA_CREATE_DELAY_KEY_WRITE)
options|= HA_OPTION_DELAY_KEY_WRITE;
if (flags & HA_CREATE_RELIES_ON_SQL_LAYER)
options|= HA_OPTION_RELIES_ON_SQL_LAYER;
if (flags & HA_CREATE_PAGE_CHECKSUM)
options|= HA_OPTION_PAGE_CHECKSUM;
pack_bytes= (packed + 7) / 8;
if (pack_reclength != INT_MAX32)
pack_reclength+= reclength+pack_bytes +
MY_TEST(test_all_bits(options, HA_OPTION_CHECKSUM |
HA_OPTION_PACK_RECORD));
min_pack_length+= pack_bytes;
/* Calculate min possible row length for rows-in-block */
extra_header_size= MAX_FIXED_HEADER_SIZE;
if (ci->transactional)
{
extra_header_size= TRANS_MAX_FIXED_HEADER_SIZE;
DBUG_PRINT("info",("creating a transactional table"));
}
share.base.min_block_length= (extra_header_size + share.base.null_bytes +
pack_bytes);
if (!ci->data_file_length && ci->max_rows)
{
set_if_bigger(ci->max_rows, ci->reloc_rows);
if (pack_reclength == INT_MAX32 ||
(~(ulonglong) 0)/ci->max_rows < (ulonglong) pack_reclength)
ci->data_file_length= ~(ulonglong) 0;
else
{
ci->data_file_length= _ma_safe_mul(ci->max_rows, pack_reclength);
if (datafile_type == BLOCK_RECORD)
{
/* Assume that blocks are only half full (very pessimistic!) */
ci->data_file_length= _ma_safe_mul(ci->data_file_length, 2);
set_if_bigger(ci->data_file_length, maria_block_size*2);
}
}
}
else if (!ci->max_rows)
{
if (datafile_type == BLOCK_RECORD)
{
uint rows_per_page=
((maria_block_size - PAGE_OVERHEAD_SIZE_RAW - crypt_page_header_space)
/ (min_pack_length + extra_header_size + DIR_ENTRY_SIZE));
ulonglong data_file_length= ci->data_file_length;
if (!data_file_length)
data_file_length= ((((ulonglong) 1 << ((BLOCK_RECORD_POINTER_SIZE-1) *
8))/2 -1) * maria_block_size);
if (rows_per_page > 0)
{
set_if_smaller(rows_per_page, MAX_ROWS_PER_PAGE);
ci->max_rows= (data_file_length / maria_block_size+1) * rows_per_page;
}
else
ci->max_rows= data_file_length / (min_pack_length +
extra_header_size +
DIR_ENTRY_SIZE);
}
else
ci->max_rows=(ha_rows) (ci->data_file_length/(min_pack_length +
((options &
HA_OPTION_PACK_RECORD) ?
3 : 0)));
set_if_smaller(ci->reloc_rows, ci->max_rows);
}
max_rows= (ulonglong) ci->max_rows;
if (datafile_type == BLOCK_RECORD)
{
/*
The + 1 is for record position withing page
The * 2 is because we need one bit for knowing if there is transid's
after the row pointer
*/
pointer= maria_get_pointer_length((ci->data_file_length /
maria_block_size) * 2, 4) + 1;
set_if_smaller(pointer, BLOCK_RECORD_POINTER_SIZE);
if (!max_rows)
max_rows= (((((ulonglong) 1 << ((pointer-1)*8)) -1) * maria_block_size) /
min_pack_length / 2);
}
else
{
if (datafile_type == NO_RECORD)
pointer= 0;
else if (datafile_type != STATIC_RECORD)
pointer= maria_get_pointer_length(ci->data_file_length,
maria_data_pointer_size);
else
pointer= maria_get_pointer_length(ci->max_rows, maria_data_pointer_size);
if (!max_rows)
max_rows= ((((ulonglong) 1 << (pointer*8)) -1) / min_pack_length);
}
real_reclength=reclength;
if (datafile_type == STATIC_RECORD)
{
if (reclength <= pointer)
reclength=pointer+1; /* reserve place for delete link */
}
else
reclength+= long_varchar_count; /* We need space for varchar! */
max_key_length=0; tot_length=0 ; key_segs=0;
fulltext_keys=0;
share.state.rec_per_key_part= rec_per_key_part;
share.state.nulls_per_key_part= nulls_per_key_part;
share.state.key_root=key_root;
share.state.key_del= HA_OFFSET_ERROR;
if (uniques)
max_key_length= MARIA_UNIQUE_HASH_LENGTH + pointer;
for (i=0, keydef=keydefs ; i < keys ; i++ , keydef++)
{
share.state.key_root[i]= HA_OFFSET_ERROR;
length= real_length_diff= 0;
min_key_length= key_length= pointer;
if (keydef->key_alg == HA_KEY_ALG_RTREE)
keydef->flag|= HA_RTREE_INDEX; /* For easier tests */
if (keydef->flag & HA_SPATIAL)
{
#ifdef HAVE_SPATIAL
/* BAR TODO to support 3D and more dimensions in the future */
uint sp_segs=SPDIMS*2;
keydef->flag=HA_SPATIAL;
if (flags & HA_DONT_TOUCH_DATA)
{
/*
Called by maria_chk - i.e. table structure was taken from
MYI file and SPATIAL key *does have* additional sp_segs keysegs.
keydef->seg here points right at the GEOMETRY segment,
so we only need to decrease keydef->keysegs.
(see maria_recreate_table() in _ma_check.c)
*/
keydef->keysegs-=sp_segs-1;
}
for (j=0, keyseg=keydef->seg ; (int) j < keydef->keysegs ;
j++, keyseg++)
{
if (keyseg->type != HA_KEYTYPE_BINARY &&
keyseg->type != HA_KEYTYPE_VARBINARY1 &&
keyseg->type != HA_KEYTYPE_VARBINARY2)
{
my_errno=HA_WRONG_CREATE_OPTION;
goto err_no_lock;
}
}
keydef->keysegs+=sp_segs;
key_length+=SPLEN*sp_segs;
length++; /* At least one length uchar */
min_key_length++;
#else
my_errno= HA_ERR_UNSUPPORTED;
goto err_no_lock;
#endif /*HAVE_SPATIAL*/
}
else if (keydef->flag & HA_FULLTEXT)
{
keydef->flag=HA_FULLTEXT | HA_PACK_KEY | HA_VAR_LENGTH_KEY;
options|=HA_OPTION_PACK_KEYS; /* Using packed keys */
for (j=0, keyseg=keydef->seg ; (int) j < keydef->keysegs ;
j++, keyseg++)
{
if (keyseg->type != HA_KEYTYPE_TEXT &&
keyseg->type != HA_KEYTYPE_VARTEXT1 &&
keyseg->type != HA_KEYTYPE_VARTEXT2)
{
my_errno=HA_WRONG_CREATE_OPTION;
goto err_no_lock;
}
if (!(keyseg->flag & HA_BLOB_PART) &&
(keyseg->type == HA_KEYTYPE_VARTEXT1 ||
keyseg->type == HA_KEYTYPE_VARTEXT2))
{
/* Make a flag that this is a VARCHAR */
keyseg->flag|= HA_VAR_LENGTH_PART;
/* Store in bit_start number of bytes used to pack the length */
keyseg->bit_start= ((keyseg->type == HA_KEYTYPE_VARTEXT1)?
1 : 2);
}
}
fulltext_keys++;
key_length+= HA_FT_MAXBYTELEN+HA_FT_WLEN;
length++; /* At least one length uchar */
min_key_length+= 1 + HA_FT_WLEN;
real_length_diff=HA_FT_MAXBYTELEN-FT_MAX_WORD_LEN_FOR_SORT;
}
else
{
/* Test if prefix compression */
if (keydef->flag & HA_PACK_KEY)
{
/* Can't use space_compression on number keys */
if ((keydef->seg[0].flag & HA_SPACE_PACK) &&
keydef->seg[0].type == (int) HA_KEYTYPE_NUM)
keydef->seg[0].flag&= ~HA_SPACE_PACK;
/* Only use HA_PACK_KEY when first segment is a variable length key */
if (!(keydef->seg[0].flag & (HA_SPACE_PACK | HA_BLOB_PART |
HA_VAR_LENGTH_PART)))
{
/* pack relative to previous key */
keydef->flag&= ~HA_PACK_KEY;
keydef->flag|= HA_BINARY_PACK_KEY | HA_VAR_LENGTH_KEY;
}
else
{
keydef->seg[0].flag|=HA_PACK_KEY; /* for easyer intern test */
keydef->flag|=HA_VAR_LENGTH_KEY;
options|=HA_OPTION_PACK_KEYS; /* Using packed keys */
}
}
if (keydef->flag & HA_BINARY_PACK_KEY)
options|=HA_OPTION_PACK_KEYS; /* Using packed keys */
if (keydef->flag & HA_AUTO_KEY && ci->with_auto_increment)
share.base.auto_key=i+1;
for (j=0, keyseg=keydef->seg ; j < keydef->keysegs ; j++, keyseg++)
{
/* numbers are stored with high by first to make compression easier */
switch (keyseg->type) {
case HA_KEYTYPE_SHORT_INT:
case HA_KEYTYPE_LONG_INT:
case HA_KEYTYPE_FLOAT:
case HA_KEYTYPE_DOUBLE:
case HA_KEYTYPE_USHORT_INT:
case HA_KEYTYPE_ULONG_INT:
case HA_KEYTYPE_LONGLONG:
case HA_KEYTYPE_ULONGLONG:
case HA_KEYTYPE_INT24:
case HA_KEYTYPE_UINT24:
case HA_KEYTYPE_INT8:
keyseg->flag|= HA_SWAP_KEY;
break;
case HA_KEYTYPE_VARTEXT1:
case HA_KEYTYPE_VARTEXT2:
case HA_KEYTYPE_VARBINARY1:
case HA_KEYTYPE_VARBINARY2:
if (!(keyseg->flag & HA_BLOB_PART))
{
/* Make a flag that this is a VARCHAR */
keyseg->flag|= HA_VAR_LENGTH_PART;
/* Store in bit_start number of bytes used to pack the length */
keyseg->bit_start= ((keyseg->type == HA_KEYTYPE_VARTEXT1 ||
keyseg->type == HA_KEYTYPE_VARBINARY1) ?
1 : 2);
}
break;
default:
break;
}
if (keyseg->flag & HA_SPACE_PACK)
{
DBUG_ASSERT(!(keyseg->flag & (HA_VAR_LENGTH_PART | HA_BLOB_PART)));
keydef->flag |= HA_SPACE_PACK_USED | HA_VAR_LENGTH_KEY;
options|=HA_OPTION_PACK_KEYS; /* Using packed keys */
length++; /* At least one length uchar */
if (!keyseg->null_bit)
min_key_length++;
key_length+= keyseg->length;
if (keyseg->length >= 255)
{
/* prefix may be 3 bytes */
length+= 2;
}
}
else if (keyseg->flag & (HA_VAR_LENGTH_PART | HA_BLOB_PART))
{
DBUG_ASSERT(!test_all_bits(keyseg->flag,
(HA_VAR_LENGTH_PART | HA_BLOB_PART)));
keydef->flag|=HA_VAR_LENGTH_KEY;
length++; /* At least one length uchar */
if (!keyseg->null_bit)
min_key_length++;
options|=HA_OPTION_PACK_KEYS; /* Using packed keys */
key_length+= keyseg->length;
if (keyseg->length >= 255)
{
/* prefix may be 3 bytes */
length+= 2;
}
}
else
{
key_length+= keyseg->length;
if (!keyseg->null_bit)
min_key_length+= keyseg->length;
}
if (keyseg->null_bit)
{
key_length++;
/* min key part is 1 byte */
min_key_length++;
options|=HA_OPTION_PACK_KEYS;
keyseg->flag|=HA_NULL_PART;
keydef->flag|=HA_VAR_LENGTH_KEY | HA_NULL_PART_KEY;
}
}
} /* if HA_FULLTEXT */
key_segs+=keydef->keysegs;
if (keydef->keysegs > HA_MAX_KEY_SEG)
{
my_errno=HA_WRONG_CREATE_OPTION;
goto err_no_lock;
}
/*
key_segs may be 0 in the case when we only want to be able to
add on row into the table. This can happen with some DISTINCT queries
in MySQL
*/
if ((keydef->flag & (HA_NOSAME | HA_NULL_PART_KEY)) == HA_NOSAME &&
key_segs)
share.state.rec_per_key_part[key_segs-1]=1L;
length+=key_length;
/*
A key can't be longer than than half a index block (as we have
to be able to put at least 2 keys on an index block for the key
algorithms to work).
*/
if (length > _ma_max_key_length())
{
my_errno=HA_WRONG_CREATE_OPTION;
goto err_no_lock;
}
keydef->block_length= (uint16) maria_block_size;
keydef->keylength= (uint16) key_length;
keydef->minlength= (uint16) min_key_length;
keydef->maxlength= (uint16) length;
if (length > max_key_length)
max_key_length= length;
tot_length= update_tot_length(tot_length, max_rows, length);
}
unique_key_parts=0;
for (i=0, uniquedef=uniquedefs ; i < uniques ; i++ , uniquedef++)
{
uniquedef->key=keys+i;
unique_key_parts+=uniquedef->keysegs;
share.state.key_root[keys+i]= HA_OFFSET_ERROR;
tot_length= update_tot_length(tot_length, max_rows, MARIA_UNIQUE_HASH_LENGTH + pointer);
}
keys+=uniques; /* Each unique has 1 key */
key_segs+=uniques; /* Each unique has 1 key seg */
base_pos=(MARIA_STATE_INFO_SIZE + keys * MARIA_STATE_KEY_SIZE +
key_segs * MARIA_STATE_KEYSEG_SIZE);
info_length= base_pos+(uint) (MARIA_BASE_INFO_SIZE+
keys * MARIA_KEYDEF_SIZE+
uniques * MARIA_UNIQUEDEF_SIZE +
(key_segs + unique_key_parts)*HA_KEYSEG_SIZE+
columns*(MARIA_COLUMNDEF_SIZE + 2));
if (encrypted)
{
share.base.extra_options|= MA_EXTRA_OPTIONS_ENCRYPTED;
/* store crypt data in info */
info_length+= ma_crypt_get_file_length();
}
if (insert_order)
{
share.base.extra_options|= MA_EXTRA_OPTIONS_INSERT_ORDER;
}
share.state.state.key_file_length= MY_ALIGN(info_length, maria_block_size);
DBUG_PRINT("info", ("info_length: %u", info_length));
/* There are only 16 bits for the total header length. */
if (share.state.state.key_file_length > 65535)
{
my_printf_error(HA_WRONG_CREATE_OPTION,
"Aria table '%s' has too many columns and/or "
"indexes and/or unique constraints.",
MYF(0), name + dirname_length(name));
my_errno= HA_WRONG_CREATE_OPTION;
goto err_no_lock;
}
bmove(share.state.header.file_version, maria_file_magic, 4);
ci->old_options=options | (ci->old_options & HA_OPTION_TEMP_COMPRESS_RECORD ?
HA_OPTION_COMPRESS_RECORD |
HA_OPTION_TEMP_COMPRESS_RECORD: 0);
mi_int2store(share.state.header.options,ci->old_options);
mi_int2store(share.state.header.header_length,info_length);
mi_int2store(share.state.header.state_info_length,MARIA_STATE_INFO_SIZE);
mi_int2store(share.state.header.base_info_length,MARIA_BASE_INFO_SIZE);
mi_int2store(share.state.header.base_pos,base_pos);
share.state.header.data_file_type= share.data_file_type= datafile_type;
share.state.header.org_data_file_type= org_datafile_type;
share.state.header.not_used= 0;
share.state.dellink = HA_OFFSET_ERROR;
share.state.first_bitmap_with_space= 0;
#ifdef MARIA_EXTERNAL_LOCKING
share.state.process= (ulong) getpid();
#endif
share.state.version= (ulong) time((time_t*) 0);
share.state.sortkey= (ushort) ~0;
share.state.auto_increment=ci->auto_increment;
share.options=options;
share.base.rec_reflength=pointer;
share.base.block_size= maria_block_size;
share.base.language= (ci->language ? ci->language :
default_charset_info->number);
/*
Get estimate for index file length (this may be wrong for FT keys)
This is used for pointers to other key pages.
*/
tmp= (tot_length / maria_block_size + keys * MARIA_INDEX_BLOCK_MARGIN);
/*
use maximum of key_file_length we calculated and key_file_length value we
got from MAI file header (see also mariapack.c:save_state)
*/
share.base.key_reflength=
maria_get_pointer_length(MY_MAX(ci->key_file_length,tmp),3);
share.base.keys= share.state.header.keys= keys;
share.state.header.uniques= uniques;
share.state.header.fulltext_keys= fulltext_keys;
mi_int2store(share.state.header.key_parts,key_segs);
mi_int2store(share.state.header.unique_key_parts,unique_key_parts);
maria_set_all_keys_active(share.state.key_map, keys);
share.base.keystart = share.state.state.key_file_length;
share.base.max_key_block_length= maria_block_size;
share.base.max_key_length=ALIGN_SIZE(max_key_length+4);
share.base.records=ci->max_rows;
share.base.reloc= ci->reloc_rows;
share.base.reclength=real_reclength;
share.base.pack_reclength= reclength + MY_TEST(options & HA_OPTION_CHECKSUM);
share.base.max_pack_length=pack_reclength;
share.base.min_pack_length=min_pack_length;
share.base.pack_bytes= pack_bytes;
share.base.fields= columns;
share.base.pack_fields= packed;
if (share.data_file_type == BLOCK_RECORD)
{
/*
we are going to create a first bitmap page, set data_file_length
to reflect this, before the state goes to disk
*/
share.state.state.data_file_length= maria_block_size;
/* Add length of packed fields + length */
share.base.pack_reclength+= share.base.max_field_lengths+3;
share.base.max_pack_length= share.base.pack_reclength;
/* Adjust max_pack_length, to be used if we have short rows */
if (share.base.max_pack_length < maria_block_size)
{
share.base.max_pack_length+= FLAG_SIZE;
if (ci->transactional)
share.base.max_pack_length+= TRANSID_SIZE * 2;
}
}
/* max_data_file_length and max_key_file_length are recalculated on open */
if (tmp_table)
share.base.max_data_file_length= (my_off_t) ci->data_file_length;
else if (ci->transactional && translog_status == TRANSLOG_OK &&
!maria_in_recovery)
{
/*
we have checked translog_inited above, because maria_chk may call us
(via maria_recreate_table()) and it does not have a log.
*/
sync_dir= MY_SYNC_DIR;
/*
If crash between _ma_state_info_write_sub() and
_ma_update_state__lsns_sub(), table should be ignored by Recovery (or
old REDOs would fail), so we cannot let LSNs be 0:
*/
share.state.skip_redo_lsn= share.state.is_of_horizon=
share.state.create_rename_lsn= LSN_MAX;
/*
We have to mark the table as not movable as the table will contain the
maria_uuid and create_rename_lsn
*/
share.state.changed|= STATE_NOT_MOVABLE;
}
if (datafile_type == DYNAMIC_RECORD)
{
share.base.min_block_length=
(share.base.pack_reclength+3 < MARIA_EXTEND_BLOCK_LENGTH &&
! share.base.blobs) ?
MY_MAX(share.base.pack_reclength,MARIA_MIN_BLOCK_LENGTH) :
MARIA_EXTEND_BLOCK_LENGTH;
}
else if (datafile_type == STATIC_RECORD)
share.base.min_block_length= share.base.pack_reclength;
if (! (flags & HA_DONT_TOUCH_DATA))
share.state.create_time= time((time_t*) 0);
if (!internal_table)
mysql_mutex_lock(&THR_LOCK_maria);
/*
NOTE: For test_if_reopen() we need a real path name. Hence we need
MY_RETURN_REAL_PATH for every fn_format(filename, ...).
*/
if (ci->index_file_name)
{
char *iext= strrchr(ci->index_file_name, '.');
int have_iext= iext && !strcmp(iext, MARIA_NAME_IEXT);
if (tmp_table)
{
char *path;
/* chop off the table name, tempory tables use generated name */
if ((path= strrchr(ci->index_file_name, FN_LIBCHAR)))
*path= '\0';
fn_format(kfilename, name, ci->index_file_name, MARIA_NAME_IEXT,
MY_REPLACE_DIR | MY_UNPACK_FILENAME |
MY_RETURN_REAL_PATH | MY_APPEND_EXT);
}
else
{
fn_format(kfilename, ci->index_file_name, "", MARIA_NAME_IEXT,
MY_UNPACK_FILENAME | MY_RETURN_REAL_PATH |
(have_iext ? MY_REPLACE_EXT : MY_APPEND_EXT));
}
fn_format(klinkname, name, "", MARIA_NAME_IEXT,
MY_UNPACK_FILENAME|MY_APPEND_EXT);
klinkname_ptr= klinkname;
/*
Don't create the table if the link or file exists to ensure that one
doesn't accidently destroy another table.
Don't sync dir now if the data file has the same path.
*/
create_flag=
(ci->data_file_name &&
!strcmp(ci->index_file_name, ci->data_file_name)) ? 0 : sync_dir;
}
else
{
char *iext= strrchr(name, '.');
int have_iext= iext && !strcmp(iext, MARIA_NAME_IEXT);
fn_format(kfilename, name, "", MARIA_NAME_IEXT, MY_UNPACK_FILENAME |
(internal_table ? 0 : MY_RETURN_REAL_PATH) |
(have_iext ? MY_REPLACE_EXT : MY_APPEND_EXT));
klinkname_ptr= NullS;
/*
Replace the current file.
Don't sync dir now if the data file has the same path.
*/
create_flag= (flags & HA_CREATE_KEEP_FILES) ? 0 : MY_DELETE_OLD;
create_flag|= (!ci->data_file_name ? 0 : sync_dir);
}
/*
If a MRG_MARIA table is in use, the mapped MARIA tables are open,
but no entry is made in the table cache for them.
A TRUNCATE command checks for the table in the cache only and could
be fooled to believe, the table is not open.
Pull the emergency brake in this situation. (Bug #8306)
NOTE: The filename is compared against unique_file_name of every
open table. Hence we need a real path here.
*/
if (!internal_table && _ma_test_if_reopen(kfilename))
{
my_printf_error(HA_ERR_TABLE_EXIST, "Aria table '%s' is in use "
"(most likely by a MERGE table). Try FLUSH TABLES.",
MYF(0), name + dirname_length(name));
my_errno= HA_ERR_TABLE_EXIST;
goto err;
}
if ((file= mysql_file_create_with_symlink(key_file_kfile, klinkname_ptr,
kfilename, 0, create_mode,
MYF(common_flag|create_flag))) < 0)
goto err;
errpos=1;
DBUG_PRINT("info", ("write state info and base info"));
if (_ma_state_info_write_sub(file, &share.state,
MA_STATE_INFO_WRITE_FULL_INFO) ||
_ma_base_info_write(file, &share.base))
goto err;
DBUG_PRINT("info", ("base_pos: %d base_info_size: %d",
base_pos, MARIA_BASE_INFO_SIZE));
DBUG_ASSERT(mysql_file_tell(file,MYF(0)) == base_pos+ MARIA_BASE_INFO_SIZE);
/* Write key and keyseg definitions */
DBUG_PRINT("info", ("write key and keyseg definitions"));
for (i=0 ; i < share.base.keys - uniques; i++)
{
uint sp_segs=(keydefs[i].flag & HA_SPATIAL) ? 2*SPDIMS : 0;
if (_ma_keydef_write(file, &keydefs[i]))
goto err;
for (j=0 ; j < keydefs[i].keysegs-sp_segs ; j++)
if (_ma_keyseg_write(file, &keydefs[i].seg[j]))
goto err;
#ifdef HAVE_SPATIAL
for (j=0 ; j < sp_segs ; j++)
{
HA_KEYSEG sseg;
sseg.type=SPTYPE;
sseg.language= 7; /* Binary */
sseg.null_bit=0;
sseg.bit_start=0;
sseg.bit_length= 0;
sseg.bit_pos= 0;
sseg.length=SPLEN;
sseg.null_pos=0;
sseg.start=j*SPLEN;
sseg.flag= HA_SWAP_KEY;
if (_ma_keyseg_write(file, &sseg))
goto err;
}
#endif
}
/* Create extra keys for unique definitions */
offset= real_reclength - uniques*MARIA_UNIQUE_HASH_LENGTH;
bzero((char*) &tmp_keydef,sizeof(tmp_keydef));
bzero((char*) &tmp_keyseg,sizeof(tmp_keyseg));
for (i=0; i < uniques ; i++)
{
tmp_keydef.keysegs=1;
tmp_keydef.block_length= (uint16) maria_block_size;
tmp_keydef.keylength= MARIA_UNIQUE_HASH_LENGTH + pointer;
tmp_keydef.minlength=tmp_keydef.maxlength=tmp_keydef.keylength;
tmp_keyseg.type= MARIA_UNIQUE_HASH_TYPE;
tmp_keyseg.length= MARIA_UNIQUE_HASH_LENGTH;
tmp_keyseg.start= offset;
offset+= MARIA_UNIQUE_HASH_LENGTH;
if (_ma_keydef_write(file,&tmp_keydef) ||
_ma_keyseg_write(file,(&tmp_keyseg)))
goto err;
}
/* Save unique definition */
DBUG_PRINT("info", ("write unique definitions"));
for (i=0 ; i < share.state.header.uniques ; i++)
{
HA_KEYSEG *keyseg_end;
keyseg= uniquedefs[i].seg;
if (_ma_uniquedef_write(file, &uniquedefs[i]))
goto err;
for (keyseg= uniquedefs[i].seg, keyseg_end= keyseg+ uniquedefs[i].keysegs;
keyseg < keyseg_end;
keyseg++)
{
switch (keyseg->type) {
case HA_KEYTYPE_VARTEXT1:
case HA_KEYTYPE_VARTEXT2:
case HA_KEYTYPE_VARBINARY1:
case HA_KEYTYPE_VARBINARY2:
if (!(keyseg->flag & HA_BLOB_PART))
{
keyseg->flag|= HA_VAR_LENGTH_PART;
keyseg->bit_start= ((keyseg->type == HA_KEYTYPE_VARTEXT1 ||
keyseg->type == HA_KEYTYPE_VARBINARY1) ?
1 : 2);
}
break;
default:
DBUG_ASSERT((keyseg->flag & HA_VAR_LENGTH_PART) == 0);
break;
}
if (_ma_keyseg_write(file, keyseg))
goto err;
}
}
DBUG_PRINT("info", ("write field definitions"));
if (datafile_type == BLOCK_RECORD)
{
/* Store columns in a more efficent order */
MARIA_COLUMNDEF **col_order, **pos;
if (!(col_order= (MARIA_COLUMNDEF**) my_malloc(PSI_INSTRUMENT_ME,
share.base.fields *
sizeof(MARIA_COLUMNDEF*),
common_flag)))
goto err;
for (column= columndef, pos= col_order ;
column != end_column ;
column++, pos++)
*pos= column;
qsort(col_order, share.base.fields, sizeof(*col_order),
(qsort_cmp) compare_columns);
for (i=0 ; i < share.base.fields ; i++)
{
column_array[col_order[i]->column_nr]= i;
if (_ma_columndef_write(file, col_order[i]))
{
my_free(col_order);
goto err;
}
}
my_free(col_order);
}
else
{
for (i=0 ; i < share.base.fields ; i++)
{
column_array[i]= (uint16) i;
if (_ma_columndef_write(file, &columndef[i]))
goto err;
}
}
if (_ma_column_nr_write(file, column_array, columns))
goto err;
if (encrypted)
{
DBUG_ASSERT(share.data_file_name.length == 0);
share.data_file_name.str= (char*) name; /* For error reporting */
if (ma_crypt_create(&share) ||
ma_crypt_write(&share, file))
goto err;
}
if ((kfile_size_before_extension= mysql_file_tell(file,MYF(0))) == MY_FILEPOS_ERROR)
goto err;
#ifndef DBUG_OFF
if (kfile_size_before_extension != info_length)
DBUG_PRINT("warning",("info_length: %u != used_length: %u",
info_length, (uint)kfile_size_before_extension));
#endif
if (sync_dir)
{
/*
we log the first bytes and then the size to which we extend; this is
a log of about 1 KB of mostly zeroes if this is a small table.
*/
char empty_string[]= "";
LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 4];
translog_size_t total_rec_length= 0;
uint k;
LSN lsn;
log_array[TRANSLOG_INTERNAL_PARTS + 1].length= 1 + 2 + 2 +
(uint) kfile_size_before_extension;
/* we are needing maybe 64 kB, so don't use the stack */
log_data= my_malloc(PSI_INSTRUMENT_ME,
log_array[TRANSLOG_INTERNAL_PARTS + 1].length, MYF(0));
if ((log_data == NULL) ||
mysql_file_pread(file, 1 + 2 + 2 + log_data,
(size_t) kfile_size_before_extension, 0, MYF(MY_NABP)))
goto err;
/*
remember if the data file was created or not, to know if Recovery can
do it or not, in the future
*/
log_data[0]= MY_TEST(flags & HA_DONT_TOUCH_DATA);
int2store(log_data + 1, kfile_size_before_extension);
int2store(log_data + 1 + 2, share.base.keystart);
log_array[TRANSLOG_INTERNAL_PARTS + 0].str= (uchar *)name;
/* we store the end-zero, for Recovery to just pass it to my_create() */
log_array[TRANSLOG_INTERNAL_PARTS + 0].length= strlen(name) + 1;
log_array[TRANSLOG_INTERNAL_PARTS + 1].str= log_data;
/* symlink description is also needed for re-creation by Recovery: */
{
const char *s= ci->data_file_name ? ci->data_file_name : empty_string;
log_array[TRANSLOG_INTERNAL_PARTS + 2].str= (uchar*)s;
log_array[TRANSLOG_INTERNAL_PARTS + 2].length= strlen(s) + 1;
s= ci->index_file_name ? ci->index_file_name : empty_string;
log_array[TRANSLOG_INTERNAL_PARTS + 3].str= (uchar*)s;
log_array[TRANSLOG_INTERNAL_PARTS + 3].length= strlen(s) + 1;
}
for (k= TRANSLOG_INTERNAL_PARTS;
k < (sizeof(log_array)/sizeof(log_array[0])); k++)
total_rec_length+= (translog_size_t) log_array[k].length;
/**
For this record to be of any use for Recovery, we need the upper
MySQL layer to be crash-safe, which it is not now (that would require
work using the ddl_log of sql/sql_table.cc); when it is, we should
reconsider the moment of writing this log record (before or after op,
under THR_LOCK_maria or not...), how to use it in Recovery.
For now this record can serve when we apply logs to a backup,
so we sync it. This happens before the data file is created. If the
data file was created before, and we crashed before writing the log
record, at restart the table may be used, so we would not have a
trustable history in the log (impossible to apply this log to a
backup). The way we do it, if we crash before writing the log record
then there is no data file and the table cannot be used.
@todo Note that in case of TRUNCATE TABLE we also come here; for
Recovery to be able to finish TRUNCATE TABLE, instead of leaving a
half-truncated table, we should log the record at start of
maria_create(); for that we shouldn't write to the index file but to a
buffer (DYNAMIC_STRING), put the buffer into the record, then put the
buffer into the index file (so, change _ma_keydef_write() etc). That
would also enable Recovery to finish a CREATE TABLE. The final result
would be that we would be able to finish what the SQL layer has asked
for: it would be atomic.
When in CREATE/TRUNCATE (or DROP or RENAME or REPAIR) we have not
called external_lock(), so have no TRN. It does not matter, as all
these operations are non-transactional and sync their files.
*/
trnman_init_tmp_trn_for_logging_trid(&tmp_transaction_object);
if (unlikely(translog_write_record(&lsn,
LOGREC_REDO_CREATE_TABLE,
&tmp_transaction_object, NULL,
total_rec_length,
sizeof(log_array)/sizeof(log_array[0]),
log_array, NULL, NULL) ||
translog_flush(lsn)))
goto err;
share.kfile.file= file;
DBUG_EXECUTE_IF("maria_flush_whole_log",
{
DBUG_PRINT("maria_flush_whole_log", ("now"));
translog_flush(translog_get_horizon());
});
DBUG_EXECUTE_IF("maria_crash_create_table",
{
DBUG_PRINT("maria_crash_create_table", ("now"));
DBUG_SUICIDE();
});
/*
store LSN into file, needed for Recovery to not be confused if a
DROP+CREATE happened (applying REDOs to the wrong table).
*/
if (_ma_update_state_lsns_sub(&share, lsn, tmp_transaction_object.trid,
FALSE, TRUE))
goto err;
my_free(log_data);
log_data= 0;
}
if (!(flags & HA_DONT_TOUCH_DATA))
{
if (ci->data_file_name)
{
char *dext= strrchr(ci->data_file_name, '.');
int have_dext= dext && !strcmp(dext, MARIA_NAME_DEXT);
if (tmp_table)
{
char *path;
/* chop off the table name, tempory tables use generated name */
if ((path= strrchr(ci->data_file_name, FN_LIBCHAR)))
*path= '\0';
fn_format(dfilename, name, ci->data_file_name, MARIA_NAME_DEXT,
MY_REPLACE_DIR | MY_UNPACK_FILENAME | MY_APPEND_EXT);
}
else
{
fn_format(dfilename, ci->data_file_name, "", MARIA_NAME_DEXT,
MY_UNPACK_FILENAME |
(have_dext ? MY_REPLACE_EXT : MY_APPEND_EXT));
}
fn_format(dlinkname, name, "",MARIA_NAME_DEXT,
MY_UNPACK_FILENAME | MY_APPEND_EXT);
dlinkname_ptr= dlinkname;
create_flag=0;
}
else
{
fn_format(dfilename,name,"", MARIA_NAME_DEXT,
MY_UNPACK_FILENAME | MY_APPEND_EXT);
create_flag= (flags & HA_CREATE_KEEP_FILES) ? 0 : MY_DELETE_OLD;
}
ma_debug_crash_here("storage_engine_middle_of_create");
if ((dfile=
mysql_file_create_with_symlink(key_file_dfile, dlinkname_ptr,
dfilename, 0, create_mode,
MYF(common_flag | create_flag | sync_dir))) < 0)
goto err;
errpos=3;
if (_ma_initialize_data_file(&share, dfile))
goto err;
}
/* Enlarge files */
DBUG_PRINT("info", ("enlarge to keystart: %lu",
(ulong) share.base.keystart));
if (mysql_file_chsize(file,(ulong) share.base.keystart,0,MYF(0)))
goto err;
if (!internal_table && sync_dir && mysql_file_sync(file, MYF(0)))
goto err;
if (! (flags & HA_DONT_TOUCH_DATA))
{
#ifdef USE_RELOC
if (mysql_file_chsize(key_file_dfile, dfile,
share.base.min_pack_length*ci->reloc_rows,0,MYF(0)))
goto err;
#endif
if (!internal_table && sync_dir && mysql_file_sync(dfile, MYF(0)))
goto err;
if (mysql_file_close(dfile,MYF(0)))
goto err;
}
if (!internal_table)
mysql_mutex_unlock(&THR_LOCK_maria);
res= 0;
my_free((char*) rec_per_key_part);
ma_crypt_free(&share);
errpos=0;
if (mysql_file_close(file,MYF(0)))
res= my_errno;
DBUG_RETURN(res);
err:
if (!internal_table)
mysql_mutex_unlock(&THR_LOCK_maria);
err_no_lock:
save_errno=my_errno;
switch (errpos) {
case 3:
mysql_file_close(dfile, MYF(0));
if (! (flags & HA_DONT_TOUCH_DATA))
{
mysql_file_delete(key_file_dfile, dfilename, MYF(sync_dir));
if (dlinkname_ptr)
mysql_file_delete(key_file_dfile, dlinkname_ptr, MYF(sync_dir));
}
/* fall through */
case 1:
mysql_file_close(file, MYF(0));
if (! (flags & HA_DONT_TOUCH_DATA))
{
mysql_file_delete(key_file_kfile, kfilename, MYF(sync_dir));
if (klinkname_ptr)
mysql_file_delete(key_file_kfile, klinkname_ptr, MYF(sync_dir));
}
}
ma_crypt_free(&share);
my_free(log_data);
my_free(rec_per_key_part);
DBUG_RETURN(my_errno=save_errno); /* return the fatal errno */
}
uint maria_get_pointer_length(ulonglong file_length, uint def)
{
DBUG_ASSERT(def >= 2 && def <= 7);
if (file_length) /* If not default */
{
#ifdef NOT_YET_READY_FOR_8_BYTE_POINTERS
if (file_length >= (1ULL << 56))
def=8;
else
#endif
if (file_length >= (1ULL << 48))
def=7;
else if (file_length >= (1ULL << 40))
def=6;
else if (file_length >= (1ULL << 32))
def=5;
else if (file_length >= (1ULL << 24))
def=4;
else if (file_length >= (1ULL << 16))
def=3;
else
def=2;
}
return def;
}
/*
Sort columns for records-in-block
IMPLEMENTATION
Sort columns in following order:
Fixed size, not null columns
Fixed length, null fields
Numbers (zero fill fields)
Variable length fields (CHAR, VARCHAR) according to length
Blobs
For same kind of fields, keep fields in original order
*/
static inline int sign(long a)
{
return a < 0 ? -1 : (a > 0 ? 1 : 0);
}
static int compare_columns(const void *a_ptr_, const void *b_ptr_)
{
const MARIA_COLUMNDEF *const *a_ptr= a_ptr_;
const MARIA_COLUMNDEF *const *b_ptr= b_ptr_;
const MARIA_COLUMNDEF *a= *a_ptr, *b= *b_ptr;
enum en_fieldtype a_type, b_type;
a_type= (a->type == FIELD_CHECK) ? FIELD_NORMAL : a->type;
b_type= (b->type == FIELD_CHECK) ? FIELD_NORMAL : b->type;
if (a_type == FIELD_NORMAL && !a->null_bit)
{
if (b_type != FIELD_NORMAL || b->null_bit)
return -1;
return sign((long) a->offset - (long) b->offset);
}
if (b_type == FIELD_NORMAL && !b->null_bit)
return 1;
if (a_type == b_type)
return sign((long) a->offset - (long) b->offset);
if (a_type == FIELD_NORMAL)
return -1;
if (b_type == FIELD_NORMAL)
return 1;
if (a_type == FIELD_SKIP_ZERO)
return -1;
if (b_type == FIELD_SKIP_ZERO)
return 1;
if (a->type != FIELD_BLOB && b->type != FIELD_BLOB)
if (a->length != b->length)
return sign((long) a->length - (long) b->length);
if (a_type == FIELD_BLOB)
return 1;
if (b_type == FIELD_BLOB)
return -1;
return sign((long) a->offset - (long) b->offset);
}
/**
@brief Initialize data file
@note
In BLOCK_RECORD, a freshly created datafile is one page long; while in
other formats it is 0-byte long.
*/
int _ma_initialize_data_file(MARIA_SHARE *share, File dfile)
{
if (share->data_file_type == BLOCK_RECORD)
{
share->bitmap.block_size= share->base.block_size;
share->bitmap.file.file = dfile;
return _ma_bitmap_create_first(share);
}
return 0;
}
/**
@brief Writes create_rename_lsn, skip_redo_lsn and is_of_horizon to disk,
can force.
This is for special cases where:
- we don't want to write the full state to disk (so, not call
_ma_state_info_write()) because some parts of the state may be
currently inconsistent, or because it would be overkill
- we must sync these LSNs immediately for correctness.
It acquires intern_lock to protect the LSNs and state write.
@param share table's share
@param lsn LSN to write to log files
@param create_trid Trid to be used as state.create_trid
@param do_sync if the write should be forced to disk
@param update_create_rename_lsn if this LSN should be updated or not
@return Operation status
@retval 0 ok
@retval 1 error (disk problem)
*/
int _ma_update_state_lsns(MARIA_SHARE *share, LSN lsn, TrID create_trid,
my_bool do_sync, my_bool update_create_rename_lsn)
{
int res;
DBUG_ENTER("_ma_update_state_lsns");
mysql_mutex_lock(&share->intern_lock);
res= _ma_update_state_lsns_sub(share, lsn, create_trid, do_sync,
update_create_rename_lsn);
mysql_mutex_unlock(&share->intern_lock);
DBUG_RETURN(res);
}
/**
@brief Writes create_rename_lsn, skip_redo_lsn and is_of_horizon to disk,
can force.
Shortcut of _ma_update_state_lsns() when we know that intern_lock is not
needed (when creating a table or opening it for the first time).
@param share table's share
@param lsn LSN to write to state; if LSN_IMPOSSIBLE, write
a LOGREC_IMPORTED_TABLE and use its LSN as lsn.
@param create_trid Trid to be used as state.create_trid
@param do_sync if the write should be forced to disk
@param update_create_rename_lsn if this LSN should be updated or not
@return Operation status
@retval 0 ok
@retval 1 error (disk problem)
*/
#if defined(_MSC_VER) && (_MSC_VER == 1310)
/*
Visual Studio 2003 compiler produces internal compiler error
in this function. Disable optimizations to workaround.
*/
#pragma optimize("",off)
#endif
int _ma_update_state_lsns_sub(MARIA_SHARE *share, LSN lsn, TrID create_trid,
my_bool do_sync,
my_bool update_create_rename_lsn)
{
uchar buf[LSN_STORE_SIZE * 3], *ptr;
uchar trid_buff[8];
File file= share->kfile.file;
DBUG_ENTER("_ma_update_state_lsns_sub");
DBUG_ASSERT(file >= 0);
CRASH_IF_S3_TABLE(share);
if (lsn == LSN_IMPOSSIBLE)
{
int res;
LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 1];
/* table name is logged only for information */
log_array[TRANSLOG_INTERNAL_PARTS + 0].str=
(uchar *)(share->open_file_name.str);
log_array[TRANSLOG_INTERNAL_PARTS + 0].length=
share->open_file_name.length + 1;
if ((res= translog_write_record(&lsn, LOGREC_IMPORTED_TABLE,
&dummy_transaction_object, NULL,
(translog_size_t)
log_array[TRANSLOG_INTERNAL_PARTS +
0].length,
sizeof(log_array)/sizeof(log_array[0]),
log_array, NULL, NULL)))
DBUG_RETURN(res);
}
for (ptr= buf; ptr < (buf + sizeof(buf)); ptr+= LSN_STORE_SIZE)
lsn_store(ptr, lsn);
share->state.skip_redo_lsn= share->state.is_of_horizon= lsn;
share->state.create_trid= create_trid;
mi_int8store(trid_buff, create_trid);
/*
Update create_rename_lsn if update was requested or if the old one had an
impossible value.
*/
if (update_create_rename_lsn ||
(share->state.create_rename_lsn > lsn && lsn != LSN_IMPOSSIBLE))
{
share->state.create_rename_lsn= lsn;
if (share->id != 0)
{
/*
If OP is the operation which is calling us, if table is later written,
we could see in the log:
FILE_ID ... REDO_OP ... REDO_INSERT.
(that can happen in real life at least with OP=REPAIR).
As FILE_ID will be ignored by Recovery because it is <
create_rename_lsn, REDO_INSERT would be ignored too, wrongly.
To avoid that, we force a LOGREC_FILE_ID to be logged at next write:
*/
translog_deassign_id_from_share(share);
}
}
else
lsn_store(buf, share->state.create_rename_lsn);
DBUG_RETURN(my_pwrite(file, buf, sizeof(buf),
sizeof(share->state.header) +
MARIA_FILE_CREATE_RENAME_LSN_OFFSET, MYF(MY_NABP)) ||
my_pwrite(file, trid_buff, sizeof(trid_buff),
sizeof(share->state.header) +
MARIA_FILE_CREATE_TRID_OFFSET, MYF(MY_NABP)) ||
(do_sync && mysql_file_sync(file, MYF(0))));
}
#if defined(_MSC_VER) && (_MSC_VER == 1310)
#pragma optimize("",on)
#endif /*VS2003 compiler bug workaround*/
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