MariaDB 10.8.8 Release Notes
Release date: 10 May 2023
Thanks, and enjoy MariaDB!
- Crash on ROLLBACK in a ROW_FORMAT=COMPRESSED table (MDEV-30882)
- UNIQUE USING HASH accepts duplicate entries for tricky collations (MDEV-30034)
- rec_get_offsets() is not optimal (MDEV-30567)
- Performance regression in fil_space_t::try_to_close() introduced in MDEV-23855 (MDEV-30775)
- InnoDB recovery hangs when buffer pool ran out of memory (MDEV-30551)
- InnoDB undo log truncation fails to wait for purge of history (MDEV-30671
- MariaDB crash due to DB_FAIL reported for a corrupted page (MDEV-30397)
- Deadlock between INSERT and InnoDB non-persistent statistics update (MDEV-30638)
- InnoDB hang on B-tree split or merge (MDEV-29835)
- Performance regression in locking reads from secondary indexes (MDEV-30357)
- Improve adaptive flushing (MDEV-26055)
- Make page flushing even faster (MDEV-26827)
- Purge misses a chance to free not-yet-reused undo pages (MDEV-29593)
- InnoDB temporary tablespace: reclaiming of free space does not work (MDEV-26782)
- Deadlock between CHECK TABLE and bulk insert (MDEV-30798)
- Fix miscount of doublewrites by Innodb_data_written (MDEV-31124)
- mariadb-backup doesn't utilise innodb-undo-log-directory (if specified as a relative path) during copy-back operation (MDEV-28187)
- mariabackup issues error messages during InnoDB tablespaces export on partial backup preparing (MDEV-29050)
- mariadb-backup does not copy Aria logs if aria_log_dir_path is used (MDEV-30968)
- Race condition between buffer pool flush and log file deletion in mariadb-backup --prepare (MDEV-30860)
- Fixed a deadlock on parallel slave involving full image Write event on the sequence engine (MDEV-29621)
- Fixed an attempted out-of-order binlogging error on slave involving ALTER on the sequence engine (MDEV-31077)
- Corrected non-versioned master to versioned slave replication on no-unique attribute table (MDEV-30430)
- Mended encrypted binlog master to error out to gtid-mode slave when master could not decrypt a binlog file (MDEV-28798)
- Refined optimistic parallel slave to error-exit without any hang (MDEV-30780)
- Ensured SHOW-SLAVE-STATUS is processed on the parallel slave having a necessary mutex always intialized (MDEV-30620)
- Fixed the slave applier to report a correct error when gtid_slave_pos insert fails for some (engine) reasons (MDEV-31038)
- Made parallel slave reports in performance schema consistent with that of show-slave-status (MDEV-26071)
- Split Materialized optimization is improved to re-fill the materialized table only if necessary. The fewer number of table refills is taken into account when choosing query plan, too (MDEV-26301).
- New optimizer_switch option, hash_join_cardinality, is added. It is off by default. When set to ON, the optimizer will produce tighter bounds for hash join output cardinality. (MDEV-30812)
- Queries using
SELECT DISTINCT some_expression(aggregate_function())could produce wrong query result. (MDEV-20057)
- ANALYZE FORMAT=JSON now prints more information about Block Nested Loop joins:
block-nl-joinelement now has
r_other_time_msfields (MDEV-30806, MDEV-30972).
- A GROUP BY query with
MIN(primary_key)in select list and
primary_key<>constin the WHERE could produce wrong result when executed with "Using index for group-by" strategy (MDEV-30605)
- EXPLAIN could erroneously report that Rowid Filter optimization is used for partitioned tables. Partitioned tables do not support it. (MDEV-30596)
- A bug in selectivity computations for SINGLE/DOUBLE_PREC_HB histograms could cause wrong estimates to be produced. This could cause the optimizer to pick sub-optimal query plans (MDEV-31067).
Docker Official Image
- Add replication setup to containers contributed by Md Sahil (MDEV-29762)
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