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| author | Igor Babaev <igor@askmonty.org> | 2018-07-13 17:48:30 -0700 |
|---|---|---|
| committer | Igor Babaev <igor@askmonty.org> | 2018-07-13 17:48:45 -0700 |
| commit | c89bb15c31f98d2d368414c7366ce61955b70b44 (patch) | |
| tree | 9da9ffa67374d46d876491606b3a5f5165637b3b /sql/sql_statistics.h | |
| parent | ad9d1e8c3f5a8e1b3e222921e825247aa47c4d23 (diff) | |
| download | mariadb-git-c89bb15c31f98d2d368414c7366ce61955b70b44.tar.gz | |
MDEV-16757 Memory leak after adding manually min/max statistical data
for blob column
ANALYZE TABLE <table> does not collect statistical data on min/max values
for BLOB columns of <table>. However these values can be added into
mysql.column_stats manually by executing proper statements.
Unfortunately this led to a memory leak because the memory allocated
for these values was never freed.
This patch provides the server with a function to free memory allocated
for min/max statistical values of BLOB types.
Diffstat (limited to 'sql/sql_statistics.h')
| -rw-r--r-- | sql/sql_statistics.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sql/sql_statistics.h b/sql/sql_statistics.h index 20b2eb66449..6a43e42ab96 100644 --- a/sql/sql_statistics.h +++ b/sql/sql_statistics.h @@ -89,6 +89,7 @@ int read_statistics_for_tables_if_needed(THD *thd, TABLE_LIST *tables); int collect_statistics_for_table(THD *thd, TABLE *table); int alloc_statistics_for_table_share(THD* thd, TABLE_SHARE *share, bool is_safe); +void delete_stat_values_for_table_share(TABLE_SHARE *table_share); int alloc_statistics_for_table(THD *thd, TABLE *table); int update_statistics_for_table(THD *thd, TABLE *table); int delete_statistics_for_table(THD *thd, LEX_STRING *db, LEX_STRING *tab); |