mariadb/sql/item_row.h
Michael Widenius f197991f41 Merge with 5.1-microseconds
A lot of small fixes and new test cases.

client/mysqlbinlog.cc:
  Cast removed
client/mysqltest.cc:
  Added missing DBUG_RETURN
include/my_pthread.h:
  set_timespec_time_nsec() now only takes one argument
mysql-test/t/date_formats.test:
  Remove --disable_ps_protocl as now also ps supports microseconds
mysys/my_uuid.c:
  Changed to use my_interval_timer() instead of my_getsystime()
mysys/waiting_threads.c:
  Changed to use my_hrtime()
sql/field.h:
  Added bool special_const_compare() for fields that may convert values before compare (like year)
sql/field_conv.cc:
  Added test to get optimal copying of identical temporal values.
sql/item.cc:
  Return that item_int is equal if it's positive, even if unsigned flag is different.
  Fixed Item_cache_str::save_in_field() to have identical null check as other similar functions
  Added proper NULL check to Item_cache_int::save_in_field()
sql/item_cmpfunc.cc:
  Don't call convert_constant_item() if there is nothing that is worth converting.
  Simplified test when years should be converted
sql/item_sum.cc:
  Mark cache values in Item_sum_hybrid as not constants to ensure they are not replaced by other cache values in compare_datetime()
sql/item_timefunc.cc:
  Changed sec_to_time() to take a my_decimal argument to ensure we don't loose any sub seconds.
  Added Item_temporal_func::get_time() (This simplifies some things)
sql/mysql_priv.h:
  Added Lazy_string_decimal()
sql/mysqld.cc:
  Added my_decimal constants max_seconds_for_time_type, time_second_part_factor
sql/table.cc:
  Changed expr_arena to be of type CONVENTIONAL_EXECUTION to ensure that we don't loose any items that are created by fix_fields()
sql/tztime.cc:
  TIME_to_gmt_sec() now sets *in_dst_time_gap in case of errors
  This is needed to be able to detect if timestamp is 0
storage/maria/lockman.c:
  Changed from my_getsystime() to set_timespec_time_nsec()
storage/maria/ma_loghandler.c:
  Changed from my_getsystime() to my_hrtime()
storage/maria/ma_recovery.c:
  Changed from my_getsystime() to mmicrosecond_interval_timer()
storage/maria/unittest/trnman-t.c:
  Changed from my_getsystime() to mmicrosecond_interval_timer()
storage/xtradb/handler/ha_innodb.cc:
  Added support for new time,datetime and timestamp
unittest/mysys/thr_template.c:
  my_getsystime() -> my_interval_timer()
unittest/mysys/waiting_threads-t.c:
  my_getsystime() -> my_interval_timer()
2011-05-28 05:11:32 +03:00

84 lines
2.7 KiB
C++

/* Copyright (C) 2000 MySQL 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
class Item_row: public Item
{
Item **items;
table_map used_tables_cache, not_null_tables_cache;
uint arg_count;
bool const_item_cache;
bool with_null;
public:
Item_row(List<Item> &);
Item_row(Item_row *item):
Item(),
items(item->items),
used_tables_cache(item->used_tables_cache),
not_null_tables_cache(0),
arg_count(item->arg_count),
const_item_cache(item->const_item_cache),
with_null(0)
{}
enum Type type() const { return ROW_ITEM; };
void illegal_method_call(const char *);
bool is_null() { return null_value; }
void make_field(Send_field *)
{
illegal_method_call((const char*)"make_field");
};
double val_real()
{
illegal_method_call((const char*)"val");
return 0;
};
longlong val_int()
{
illegal_method_call((const char*)"val_int");
return 0;
};
String *val_str(String *)
{
illegal_method_call((const char*)"val_str");
return 0;
};
my_decimal *val_decimal(my_decimal *)
{
illegal_method_call((const char*)"val_decimal");
return 0;
};
bool fix_fields(THD *thd, Item **ref);
void fix_after_pullout(st_select_lex *new_parent, Item **ref);
void cleanup();
void split_sum_func(THD *thd, Item **ref_pointer_array, List<Item> &fields);
table_map used_tables() const { return used_tables_cache; };
bool const_item() const { return const_item_cache; };
enum Item_result result_type() const { return ROW_RESULT; }
Item_result cmp_type() const { return ROW_RESULT; }
void update_used_tables();
table_map not_null_tables() const { return not_null_tables_cache; }
virtual void print(String *str, enum_query_type query_type);
bool walk(Item_processor processor, bool walk_subquery, uchar *arg);
Item *transform(Item_transformer transformer, uchar *arg);
uint cols() { return arg_count; }
Item* element_index(uint i) { return items[i]; }
Item** addr(uint i) { return items + i; }
bool check_cols(uint c);
bool null_inside() { return with_null; };
void bring_value();
bool check_vcol_func_processor(uchar *int_arg) {return FALSE; }
};