Vitess
v24.0.1Storage & DataVitess v24.0.1 is a focused patch release fixing a VTGate query planner bug with DML subqueries, reverting a problematic VTOrc flag, and resolving flaky VTTablet unit tests.
breakingRemove VTOrc --cells-to-watch flag if you added it
The 'cells to watch' flag introduced in #19354 has been reverted. If you added this flag to your VTOrc configuration or startup scripts after upgrading to v24.0.0, remove it before upgrading to v24.0.1 — VTOrc will fail to start with an unrecognized flag error.
enhancementUpgrade if you use DML subqueries through VTGate
A query planner bug affected IN/NOT IN subqueries inside DML statements (INSERT/UPDATE/DELETE). Merged subqueries weren't being substituted correctly via ListArg placeholders, which could produce wrong query behavior. If your application runs DML with subqueries routed through VTGate, this patch directly addresses that correctness issue — upgrade promptly.
Key changes (4)
- VTGate planner fix: DML IN/NOT IN subqueries now correctly use ListArg placeholders after merging — prevents potential query correctness issues
- VTOrc reverted the 'cells to watch' flag (#19354) — if you applied that flag in v24.0.0, it's now gone and configs referencing it will need cleanup
- VTTablet flaky unit tests fixed in go/mysql and vreplication — shared root cause addressed, improving CI reliability
- vtcombo startup hang fixed — previously could block for up to 10 minutes if vtcombo exited during startup