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Speedup:

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- Don't call update_virtual_fields() if table->vfield is not set
- Don't prealloc memory for in open_tables() as this is very seldom used.


sql/records.cc:
  Don't call update_virtual_fields() if table->vfield is not set
sql/sql_base.cc:
  Don't prealloc memory for in open_tables() as this is very seldom used.
  Don't call update_virtual_fields() if table->vfield is not set
sql/sql_delete.cc:
  Don't call update_virtual_fields() if table->vfield is not set
sql/sql_handler.cc:
  Don't call update_virtual_fields() if table->vfield is not set
sql/sql_join_cache.cc:
  Don't call update_virtual_fields() if table->vfield is not set
  Move some frequent values to local variables
sql/sql_table.cc:
  Don't call update_virtual_fields() if table->vfield is not set
sql/sql_update.cc:
  Don't call update_virtual_fields() if table->vfield is not set
sql/table.cc:
  Assert if update_virtual_fields is called with wrong parameters
This commit is contained in:
Michael Widenius
2012-03-23 18:22:39 +02:00
parent 8e825a2249
commit c36bdf1c88
8 changed files with 29 additions and 25 deletions
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13
sql/sql_base.cc
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@ -4706,7 +4706,7 @@ int open_tables(THD *thd, TABLE_LIST **start, uint *counter, uint flags)
temporary mem_root for new .frm parsing.
TODO: variables for size
*/
init_sql_alloc(&new_frm_mem, 8024, 8024);
init_sql_alloc(&new_frm_mem, 8024, 0);
thd->current_tablenr= 0;
restart:
@ -8648,14 +8648,9 @@ fill_record(THD * thd, List<Item> &fields, List<Item> &values,
}
/* Update virtual fields*/
thd->abort_on_warning= FALSE;
if (vcol_table)
{
if (vcol_table->vfield)
{
if (update_virtual_fields(thd, vcol_table, TRUE))
goto err;
}
}
if (vcol_table && vcol_table->vfield &&
update_virtual_fields(thd, vcol_table, TRUE))
goto err;
thd->abort_on_warning= save_abort_on_warning;
thd->no_errors= save_no_errors;
DBUG_RETURN(thd->is_error());