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| author | Sergey Vojtovich <svoj@mariadb.org> | 2020-04-02 00:39:54 +0400 |
|---|---|---|
| committer | Sergey Vojtovich <svoj@mariadb.org> | 2020-04-02 00:57:00 +0400 |
| commit | b40b3720cbba133ee76ef336bf89bbf5c03ac403 (patch) | |
| tree | 7b379a1788fefbd7791f7784e89d76557896a705 /mysql-test/main/column_compression.test | |
| parent | b092d35f13ceae37cda26478635b127f9b401e2c (diff) | |
| download | mariadb-git-b40b3720cbba133ee76ef336bf89bbf5c03ac403.tar.gz | |
MDEV-21348 - column compression memory leak
The Storage-Engine Independent Column Compression does not call
deflateEnd() when deflate() does not return Z_STREAM_END.
This for instance happens when the data is already (externally)
compressed and deflate() needs more space than the original data.
This patch is based on contribution by Martijn Broenland.
Diffstat (limited to 'mysql-test/main/column_compression.test')
| -rw-r--r-- | mysql-test/main/column_compression.test | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mysql-test/main/column_compression.test b/mysql-test/main/column_compression.test index 092125735cf..1560b23ad3e 100644 --- a/mysql-test/main/column_compression.test +++ b/mysql-test/main/column_compression.test @@ -255,3 +255,14 @@ DROP TABLE t1; CREATE TABLE t1 (a NVARCHAR(10) COMPRESSED BINARY COMPRESSED); --error ER_PARSE_ERROR CREATE TABLE t1 (a NVARCHAR(10) COMPRESSED DEFAULT '' COMPRESSED); + + +--echo # +--echo # MDEV-21348 - Memory leak in Storage-Engine Independent Column +--echo # Compression +--echo # +CREATE TABLE t1(a BLOB COMPRESSED); +SET column_compression_threshold=0; +INSERT INTO t1 VALUES('aa'); +SET column_compression_threshold=DEFAULT; +DROP TABLE t1; |