v.20.8Bug Fix
Fixed concurrency issues with DDL operations in Atomic database engine
FixedDROP TABLE IF EXISTSfailure withTable ... does not existerror when table is concurrently renamed (for Atomic database engine). Fixed rare deadlock when concurrently executing some DDL queries with multiple tables (likeDROP DATABASEandRENAME TABLE) FixedDROP/DETACH DATABASEfailure withTable ... does not existwhen concurrently executingDROP/DETACH TABLE. #15934 (tavplubix).