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MDEV-21873: 10.2 to 10.3 upgrade doesn't remove semi-sync reference

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from mysql.plugin table
Fix: Since mysql_upgrade runs commands from mysql_system_tables.fix,
added sql commands to check for semisync plugins in
INFORMATION_SCHEMA.PLUGINS and if they aren't there then delete them
from mysql.plugin.
This commit is contained in:
Rucha Deodhar
2022-03-25 18:29:39 +05:30
parent fbcf0225e1
commit 549a71e74b
1 changed files with 7 additions and 0 deletions
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7
scripts/mysql_system_tables_fix.sql
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@ -796,3 +796,10 @@ ALTER TABLE help_topic MODIFY url TEXT NOT NULL;
# MDEV-7383 - varbinary on mix/max of column_stats
alter table column_stats modify min_value varbinary(255) DEFAULT NULL, modify max_value varbinary(255) DEFAULT NULL;
# MDEV-21873: 10.2 to 10.3 upgrade doesn't remove semi-sync reference from
# mysql.plugin table.
# As per suggested fix, check INFORMATION_SCHEMA.PLUGINS
# and if semisync plugins aren't there, delete them from mysql.plugin.
DELETE FROM mysql.plugin WHERE name="rpl_semi_sync_master" AND NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME="rpl_semi_sync_master");
DELETE FROM mysql.plugin WHERE name="rpl_semi_sync_slave" AND NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME="rpl_semi_sync_slave");