thanks, we are checking partition maintain jobs ,that hold access exclusive lock.
Tom Lane <t...@sss.pgh.pa.us> 於 2025年5月15日週四 下午9:24寫道： > Laurenz Albe <laurenz.a...@cybertec.at> writes: > > On Thu, 2025-05-15 at 16:27 +0800, James Pang wrote: > >> why inserts into partition table cause "relation lock" ? > > > Something else does; use the pg_blocking_pids() function with the > process ID of > > a blocked backend to find out who is holding the lock. > > More specifically: the inserts are only trying to get a shared lock. > If they are blocked, it's because some other operation is already > holding an exclusive lock on the table and is not letting go. > Look for uncommitted DDL changes. > > More details about that at [1]. > > regards, tom lane > > [1] > https://www.postgresql.org/docs/current/explicit-locking.html#LOCKING-TABLES > > >
