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MDEV-3798: EXPLAIN UPDATE/DELETE

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- Add support for EXPLAIN INSERT.
This commit is contained in:
Sergey Petrunya 2013-10-07 17:29:51 +04:00
commit 98a8642fe8
11 changed files with 201 additions and 62 deletions
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14
sql/sql_delete.cc
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@ -680,20 +680,8 @@ cleanup:
/* Special exits */
exit_without_my_ok:
query_plan.save_explain_data(thd->lex->explain);
int err2= thd->lex->explain->send_explain(thd);
select_send *result2;
if (!(result2= new select_send()))
return 1; /* purecov: inspected */
List<Item> dummy; /* note: looked in 5.6 and they too use a dummy list like this */
result2->prepare(dummy, &thd->lex->unit);
thd->send_explain_fields(result2);
int err2= thd->lex->explain->print_explain(result2, thd->lex->describe);
if (err2)
result2->abort_result_set();
else
result2->send_eof();
delete select;
free_underlaid_joins(thd, select_lex);
//table->set_keyread(false);