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Fixed mdev-15017 Server crashes in in st_join_table::fix_splitting

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Do not apply splitting for constant tables.
This commit is contained in:
Igor Babaev
2018-01-29 23:51:04 -08:00
parent 4808996b12
commit 775aa5542d
4 changed files with 32 additions and 8 deletions
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9
sql/sql_select.cc
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@ -4565,12 +4565,6 @@ make_join_statistics(JOIN *join, List<TABLE_LIST> &tables_list,
DBUG_EXECUTE("opt", print_keyuse_array(keyuse_array););
}
for (s= stat; s < stat_end; s++)
{
if (s->table->is_splittable())
s->add_keyuses_for_splitting();
}
join->const_table_map= no_rows_const_tables;
join->const_tables= const_count;
eliminate_tables(join);
@ -4877,6 +4871,9 @@ make_join_statistics(JOIN *join, List<TABLE_LIST> &tables_list,
s->scan_time();
}
if (s->table->is_splittable())
s->add_keyuses_for_splitting();
/*
Set a max range of how many seeks we can expect when using keys
This is can't be to high as otherwise we are likely to use