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MDEV-7927: Server crashes in in Time_and_counter_tracker::incr_loops

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- JOIN::save_explain_data should also set JOIN::tracker (it already
  sets join_tab[0].tracker). This is needed for UNIONs inside subqueries.
This commit is contained in:
Sergei Petrunia
2015-04-08 03:33:48 +03:00
parent 0df8c0aa5e
commit 2b475b567e
3 changed files with 23 additions and 1 deletions
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4
sql/sql_select.cc
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@ -2376,8 +2376,10 @@ void JOIN::save_explain_data(Explain_query *output, bool can_overwrite,
This is fake_select_lex. It has no query plan, but we need to set up a
tracker for ANALYZE
*/
Explain_union *eu= output->get_union(select_lex->master_unit()->first_select()->select_number);
uint nr= select_lex->master_unit()->first_select()->select_number;
Explain_union *eu= output->get_union(nr);
join_tab[0].tracker= eu->get_fake_select_lex_tracker();
tracker= &eu->time_tracker;
}
}