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Hi denisaleksandrov,
I think you may find this knowledge center article helpful: https://aws.amazon.com/premiumsupport/knowledge-center/prevent-locks-blocking-queries-redshift/
I suspect there is an open transaction or perhaps an open cursor on the session doing the SELECT ... that is still holding an AccessShareLock on the table when your other session it trying to get an AccessExclusiveLock while doing the ALTER TABLE ... RENAME ...
I hope this helps,
-Kurt
답변함 5년 전