On Sat, Mar 23, 2024 at 09:29:55PM +0800, James Pang wrote: > Hi, > PGv14, it's a time range partition table, we first create index ... on > ONLY parent table and it's done very fast, then we are doing "create index > concurrently ... on each partition table", then we saw it blocked by some > other sessopm "select on other tables" , is it expected ? Yes. create index will continue its work as soon as all transactions that are started than itself (the create index transaction) will end. Best regards, depesz