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cleanup st_select_lex_unit::explainable

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This commit is contained in:
Sergei Golubchik
2019-10-07 20:25:55 +02:00
parent 721a9df751
commit 57a09a72a3
6 changed files with 18 additions and 63 deletions
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14
sql/sql_delete.cc
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@ -199,23 +199,12 @@ bool Update_plan::save_explain_data_intern(MEM_ROOT *mem_root,
&explain->mrr_type);
}
bool skip= updating_a_view;
/* Save subquery children */
for (SELECT_LEX_UNIT *unit= select_lex->first_inner_unit();
unit;
unit= unit->next_unit())
{
if (skip)
{
skip= false;
continue;
}
/*
Display subqueries only if they are not parts of eliminated WHERE/ON
clauses.
*/
if (!(unit->item && unit->item->eliminated))
if (unit->explainable())
explain->add_child(unit->first_select()->select_number);
}
return 0;
@ -395,7 +384,6 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
table->map=1;
query_plan.select_lex= thd->lex->first_select_lex();
query_plan.table= table;
query_plan.updating_a_view= MY_TEST(table_list->view);
if (mysql_prepare_delete(thd, table_list, select_lex->with_wild,
select_lex->item_list, &conds,