diff options
Diffstat (limited to 'sql/item_subselect.cc')
| -rw-r--r-- | sql/item_subselect.cc | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/sql/item_subselect.cc b/sql/item_subselect.cc index 6f0a38c1625..fa9eff0d95b 100644 --- a/sql/item_subselect.cc +++ b/sql/item_subselect.cc @@ -1053,6 +1053,14 @@ Item_in_subselect::single_value_transformer(JOIN *join, it.replace(item); } + DBUG_EXECUTE("where", + print_where(item, "rewrite with MIN/MAX", QT_ORDINARY);); + if (thd->variables.sql_mode & MODE_ONLY_FULL_GROUP_BY) + { + DBUG_ASSERT(select_lex->non_agg_field_used()); + select_lex->set_non_agg_field_used(false); + } + save_allow_sum_func= thd->lex->allow_sum_func; thd->lex->allow_sum_func|= 1 << thd->lex->current_select->nest_level; /* @@ -1711,7 +1719,7 @@ subselect_single_select_engine(st_select_lex *select, select_subselect *result_arg, Item_subselect *item_arg) :subselect_engine(item_arg, result_arg), - prepared(0), optimized(0), executed(0), + prepared(0), optimized(0), executed(0), optimize_error(0), select_lex(select), join(0) { select_lex->master_unit()->item= item_arg; @@ -1721,7 +1729,7 @@ subselect_single_select_engine(st_select_lex *select, void subselect_single_select_engine::cleanup() { DBUG_ENTER("subselect_single_select_engine::cleanup"); - prepared= optimized= executed= 0; + prepared= optimized= executed= optimize_error= 0; join= 0; result->cleanup(); DBUG_VOID_RETURN; @@ -1921,6 +1929,10 @@ int join_read_next_same_or_null(READ_RECORD *info); int subselect_single_select_engine::exec() { DBUG_ENTER("subselect_single_select_engine::exec"); + + if (optimize_error) + DBUG_RETURN(1); + char const *save_where= thd->where; SELECT_LEX *save_select= thd->lex->current_select; thd->lex->current_select= select_lex; @@ -1928,12 +1940,15 @@ int subselect_single_select_engine::exec() { SELECT_LEX_UNIT *unit= select_lex->master_unit(); + DBUG_EXECUTE_IF("bug11747970_simulate_error", + DBUG_SET("+d,bug11747970_raise_error");); + optimized= 1; unit->set_limit(unit->global_parameters); if (join->optimize()) { thd->where= save_where; - executed= 1; + optimize_error= 1; thd->lex->current_select= save_select; DBUG_RETURN(join->error ? join->error : 1); } |