Add index hint for releasing blocked executions#718
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Use Rails' `optimizer_hints` to hint MySQL to use the `index_solid_queue_blocked_executions_for_release` composite index when releasing blocked executions, avoiding query planner misses and unnecessary row locks. The hint is rendered as a `/*+ ... */` SQL comment, which MySQL's optimizer reads and SQLite and PostgreSQL ignore as a regular comment. Fixes #694
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Use Rails'
optimizer_hintsto hint MySQL to use theindex_solid_queue_blocked_executions_for_releasecomposite index when releasing blocked executions, avoiding query planner misses and unnecessary row locks.The hint is rendered as a
/*+ ... */SQL comment, which MySQL's optimizer reads and SQLite and PostgreSQL ignore as a regular comment.Fixes #694