This update fixes a number of regressions which were significant enough that it was decided to backport to the release branch. The issue with XtraBackup not being compatible with MySQL 8.0.20 has been fixed by Percona. Anyone using MySQL 8.0.20 or higher will need to use Xtrabackup 8.0.12.
Bugs Fixed
- Vtgate: Fix panic from
select database()in OLAP mode #6318 Fixes #6200 - Vtgate: Fix
DEFAULTfunction not working with keyword column names #6319 Fixes #6221 - Vttablet: Fix regression where some options could no longer be specified as floating-point values #6320
- Vtgate: Fix regression on autocommit transactions that led to extra
beginstatements being issued, and updates getting rolled back because of a previous error #6321 Fixes #6264 and #6285 - Security: new versions of Netty and tcnative #6322
- Vtgate: Fix panic when selecting
@variable#6323 Fixes #6294 - Vtgate: Fix problem with incorrect values being inserted due to bindvariable name collisions #6324 #6327 Fixes #6266