Release Notes for MariaDB ColumnStore 1.4.3
MariaDB ColumnStore is a columnar storage engine. This is the first GA release in the ColumnStore 1.4 series. This release contains new features and fixes, compared to MariaDB ColumnStore 1.4.2.
This release of MariaDB ColumnStore is included with MariaDB Enterprise Server 10.4.12-6.
MariaDB ColumnStore 1.4.3 was released on 2020-03-02.
MariaDB ColumnStore 1.4.3 is the first Generally Available (GA) release of the ColumnStore 1.4 release series. (MCOL-3686)
Support added for
ALTER TABLE ... ENGINE=ColumnStore(MCOL-128)
Support added for
CREATE TABLE ... ENGINE=ColumnStore AS SELECT ...(MCOL-3349)
Can result in data loss
Potential data loss with S3 StorageManager when
mcsadmin suspendDataWritesreturns before S3 sync is complete. (MCOL-3736)
Can result in crashes, hangs, stalls
A User Module (UM) join memory overflow can cause session hang and fail to free memory. (MCOL-3713)
Improper StorageManager shutdown can result if process is killed by fatal error. (MCOL-3748)
Failure to sync timezone variable between queries can trigger a hang. (MCOL-3776)
Can result in unexpected behavior
Incorrect query validation for complex
Incorrect comparison of padded string vs. non-padded column. (MCOL-1559)
Matched and changed row counts may be zero even if rows are changed (
Rows matched: 0 Changed: 0). (MCOL-2239)
SPACE()may return error 1178. (MCOL-3473)
ERROR 1178 (42000) at line 1: The storage engine for the table doesn't support IDB-1001: Function 'space' can only be used in the outermost select or order by clause and cannot be used in conjunction with an aggregate function.
StorageManager may log inconsistently. (MCOL-3638)
HAVINGconditions skipping may generate spurious warnings. (MCOL-3769)
Failure to start when Server is rebooted without
mcsadmin shutdownSystemfirst. (MCOL-3829)
Stopping Server with systemd triggers restart by ColumnStore. (MCOL-3718)
Note: 1618 COLLATE is ignored in ColumnStorewas not correctly surfaced. (MCOL-3721)
ORDER BY ... LIMITmay produce incorrect result. (MCOL-3747)
In alignment to the MariaDB Corporation Engineering Policy, MariaDB ColumnStore 1.4.3 is provided for:
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 7
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server 12
MariaDB Enterprise ColumnStore 1.4 is no longer supported. If you would like to deploy Enterprise ColumnStore, please use MariaDB Enterprise ColumnStore 5 or later. For installation and upgrade instructions, see "Deploy".