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Merge 10.3 into 10.4

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This commit is contained in:
Marko Mäkelä
2018-10-10 10:36:51 +03:00
parent 5646c43159 61b32df931
commit 2a955c7a83
39 changed files with 386 additions and 198 deletions
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8
sql/sql_select.cc
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@ -11672,7 +11672,15 @@ uint check_join_cache_usage(JOIN_TAB *tab,
effort now.
*/
if (tab->table->pos_in_table_list->is_materialized_derived())
{
no_bka_cache= true;
/*
Don't use hash join algorithm if the temporary table for the rows
of the derived table will be created with an equi-join key.
*/
if (tab->table->s->keys)
no_hashed_cache= true;
}
/*
Don't use join buffering if we're dictated not to by no_jbuf_after