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Marko Mäkelä 1c9f64e54f MDEV-36613 Incorrect undo logging for indexes on virtual columns 
Starting with mysql/mysql-server@02f8eaa998
and commit 2e814d4702 the index ID of
indexes on virtual columns was being encoded insufficiently in
InnoDB undo log records.  Only the least significant 32 bits were
being written.  This could lead to some corruption of the affected
indexes on ROLLBACK, as well as to missed chances to remove some
history from such indexes when purging the history of committed
transactions that included DELETE or an UPDATE in the indexes.

dict_hdr_create(): In debug instrumented builds, initialize the
DICT_HDR_INDEX_ID close to the 32-bit barrier, instead of initializing
it to DICT_HDR_FIRST_ID (10).  This will allow the changed code to
be exercised while running ./mtr --suite=gcol,vcol.

trx_undo_log_v_idx(): Encode large index->id in a similar way as
mysql/mysql-server@e00328b4d0
but using a different implementation.

trx_undo_read_v_idx_low(): Decode large index->id in a similar way
as mach_u64_read_much_compressed().

Reviewed by: Debarun Banerjee
2025-04-16 15:55:45 +03:00
..
trx0i_s.cc Merge branch 10.4 into 10.5 2021-12-26 12:51:04 +01:00
trx0purge.cc MDEV-33062 innodb_undo_log_truncate=ON prevents fast shutdown 2023-12-19 14:45:39 +02:00
trx0rec.cc MDEV-36613 Incorrect undo logging for indexes on virtual columns 2025-04-16 15:55:45 +03:00
trx0roll.cc MDEV-33064: Sync trx->wsrep state from THD on trx start 2025-01-14 02:17:22 +01:00
trx0rseg.cc Merge 10.4 into 10.5 2024-03-11 10:08:20 +02:00
trx0sys.cc MDEV-31234 InnoDB does not free UNDO after the fix of MDEV-30671 2023-05-19 12:19:26 +03:00
trx0trx.cc MDEV-33064: Sync trx->wsrep state from THD on trx start 2025-01-14 02:17:22 +01:00
trx0undo.cc Extract some of #3360 fixes to 10.5.x 2024-11-21 22:43:56 +11:00