We have other application depend on V13, possible to backport code changes to V13 as https://git.postgresql.org/gitweb/?p=postgresql.git;a=patch;h=86dc90056dfdbd9d1b891718d2e5614e3e432f35 Thanks, James -----Original Message----- From: Tom Lane <tgl@xxxxxxxxxxxxx> Sent: Tuesday, June 28, 2022 9:30 PM To: James Pang (chaolpan) <chaolpan@xxxxxxxxx> Cc: pgsql-performance@xxxxxxxxxxxxxxxxxxxx Subject: Re: partition pruning only works for select but update "James Pang (chaolpan)" <chaolpan@xxxxxxxxx> writes: > But when > Explain update table set .. where partitionkey between to_timestamp() and to_timestamp(); > It still show all of partitions with update ... In releases before v14, partition pruning is far stupider for UPDATE (and DELETE) than it is for SELECT. regards, tom lane
