Re: create index concurrently blocked by other query

James Pang <jamespang886@gmail.com> writes:
>     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, read the documentation.  CONCURRENTLY avoids blocking other
transactions, at the cost of being easily blocked itself.

            regards, tom lane