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MDEV-15580: Assertion `!lex->explain' failed in lex_start(THD*):

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Problem was that we did not delete explain information
when Galera must replay a query.

Could not find easily repeatable test case that would not
cause other problems.
This commit is contained in:
Jan Lindström 2018-04-12 16:02:25 +03:00
parent 479fb6c1e9
commit fe20fe0d0a
1 changed files with 7 additions and 1 deletions
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8
sql/sql_parse.cc
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@ -7818,6 +7818,8 @@ static void wsrep_mysql_parse(THD *thd, char *rawbuf, uint length,
if (thd->wsrep_conflict_state == MUST_REPLAY)
{
if (thd->lex->explain)
delete_explain_query(thd->lex);
wsrep_replay_transaction(thd);
}
@ -7870,8 +7872,12 @@ static void wsrep_mysql_parse(THD *thd, char *rawbuf, uint length,
}
/* If retry is requested clean up explain structure */
if (thd->wsrep_conflict_state == RETRY_AUTOCOMMIT && thd->lex->explain)
if ((thd->wsrep_conflict_state == RETRY_AUTOCOMMIT ||
thd->wsrep_conflict_state == MUST_REPLAY )
&& thd->lex->explain)
{
delete_explain_query(thd->lex);
}
} while (thd->wsrep_conflict_state== RETRY_AUTOCOMMIT);