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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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3
sql/sql_delete.cc
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@ -332,7 +332,8 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
while (!(error=info.read_record(&info)) && !thd->killed &&
! thd->is_error())
{
update_virtual_fields(thd, table);
if (table->vfield)
update_virtual_fields(thd, table);
thd->examined_row_count++;
// thd->is_error() is tested to disallow delete row on error
if (!select || select->skip_record(thd) > 0)