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| author | Varun Gupta <varun.gupta@mariadb.com> | 2018-08-24 01:59:02 +0530 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2018-08-27 12:21:26 +0300 |
| commit | 69d7bfd97092f050bd4c60ce79f60d48a249089b (patch) | |
| tree | 9436917e13dde703be88d41553153e4fe325e483 /sql/sql_statistics.cc | |
| parent | 7d8d37c31d9cabaf31576eb3edeae6580ffb16b4 (diff) | |
| download | mariadb-git-69d7bfd97092f050bd4c60ce79f60d48a249089b.tar.gz | |
MDEV-17023: Crash during read_histogram_for_table with optimizer_use_condition_selectivity set to 4
No need to read statistics for tables that are not USER tables.
We allocate memory for structures to collect statistics only for USER TABLES.
Diffstat (limited to 'sql/sql_statistics.cc')
| -rw-r--r-- | sql/sql_statistics.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sql/sql_statistics.cc b/sql/sql_statistics.cc index 537ede91710..cb75a5c2176 100644 --- a/sql/sql_statistics.cc +++ b/sql/sql_statistics.cc @@ -3129,6 +3129,9 @@ int read_statistics_for_tables_if_needed(THD *thd, TABLE_LIST *tables) if (!tl->is_view_or_derived() && !is_temporary_table(tl) && tl->table) { TABLE_SHARE *table_share= tl->table->s; + if (table_share && !(table_share->table_category == TABLE_CATEGORY_USER)) + continue; + if (table_share && table_share->stats_cb.stats_can_be_read && !table_share->stats_cb.stats_is_read) |