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MDEV-11639 Server crashes in update_virtual_field, gcol.innodb_virtual_basic fails in buildbot

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don't use thd->query_id check in background purge threads
(it doesn't work, because thd->query_id is never incremented there)
instead use thd->open_tables directly, there can be only one table
there anyway, and this is the table opened by this purge thread.
This commit is contained in:
Sergei Golubchik
2017-05-11 19:50:33 +02:00
parent 95e6dd443a
commit 32e3b02234
2 changed files with 26 additions and 9 deletions
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8
sql/sql_class.cc
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@ -4448,6 +4448,14 @@ TABLE *open_purge_table(THD *thd, const char *db, size_t dblen,
DBUG_RETURN(error ? NULL : tl->table);
}
TABLE *get_purge_table(THD *thd)
{
/* see above, at most one table can be opened */
DBUG_ASSERT(thd->open_tables == NULL || thd->open_tables->next == NULL);
return thd->open_tables;
}
/** Find an open table in the list of prelocked tabled
Used for foreign key actions, for example, in UPDATE t1 SET a=1;