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MDEV-33044 Loading time zones does not work with alter_algorithm INPLACE

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$MYSQL_TZINFO_TO_SQL works by truncating tables. Truncation is an
operation that cannot be done in-place and therefore is fundamentally
incompatible with alter_algorithm='INPLACE'. As a result, we override
the default alter_algorithm setting in tztime.cc to
alter_algorithm='COPY' so that timezones can be loaded regardless
of the previously set alter_algorithm.

All new code of the whole pull request, including one or several files
that are either new files or modified ones, are contributed under the
BSD-new license. I am contributing on behalf of my employer
Amazon Web Services, Inc.
This commit is contained in:
Anson Chung
2024-03-18 20:45:45 +00:00
committed by Daniel Black
parent 81f75ca83a
commit 7890388d91
4 changed files with 79 additions and 0 deletions
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18
mysql-test/main/load_timezones_with_alter_algorithm_inplace.result Normal file
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set global alter_algorithm=INPLACE;
RENAME TABLE mysql.time_zone TO mysql.time_zone_BACKUP;
RENAME TABLE mysql.time_zone_name TO mysql.time_zone_name_BACKUP;
RENAME TABLE mysql.time_zone_transition TO mysql.time_zone_transition_BACKUP;
RENAME TABLE mysql.time_zone_transition_type TO mysql.time_zone_transition_type_BACKUP;
CREATE TABLE mysql.time_zone LIKE mysql.time_zone_BACKUP;
CREATE TABLE mysql.time_zone_name LIKE mysql.time_zone_name_BACKUP;
CREATE TABLE mysql.time_zone_transition LIKE mysql.time_zone_transition_BACKUP;
CREATE TABLE mysql.time_zone_transition_type LIKE mysql.time_zone_transition_type_BACKUP;
DROP TABLE mysql.time_zone;
DROP TABLE mysql.time_zone_name;
DROP TABLE mysql.time_zone_transition;
DROP TABLE mysql.time_zone_transition_type;
RENAME TABLE mysql.time_zone_BACKUP TO mysql.time_zone;
RENAME TABLE mysql.time_zone_name_BACKUP TO mysql.time_zone_name;
RENAME TABLE mysql.time_zone_transition_BACKUP TO mysql.time_zone_transition;
RENAME TABLE mysql.time_zone_transition_type_BACKUP TO mysql.time_zone_transition_type;
set global alter_algorithm=DEFAULT;