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Merge bk-internal.mysql.com:/home/bk/mysql-5.0

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into mysql.com:/home/dlenev/src/mysql-5.0-bg5890
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dlenev@mysql.com
2004-11-12 17:21:24 +03:00
parent 232abd5f6e e7a2466024
commit 18f033b771
4 changed files with 42 additions and 2 deletions
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9
sql/sql_delete.cc
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@ -63,9 +63,14 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, SQL_LIST *order,
if (thd->lex->duplicates == DUP_IGNORE)
select_lex->no_error= 1;
/* Test if the user wants to delete all rows */
/*
Test if the user wants to delete all rows and deletion doesn't have
any side-effects (because of triggers), so we can use optimized
handler::delete_all_rows() method.
*/
if (!using_limit && const_cond && (!conds || conds->val_int()) &&
!(specialflag & (SPECIAL_NO_NEW_FUNC | SPECIAL_SAFE_MODE)))
!(specialflag & (SPECIAL_NO_NEW_FUNC | SPECIAL_SAFE_MODE)) &&
!(table->triggers && table->triggers->has_delete_triggers()))
{
deleted= table->file->records;
if (!(error=table->file->delete_all_rows()))