Gavin Roy <gavinr@xxxxxxxxxx> writes: > Our code which works in previous versions of Postgres uses UPDATE RETURNING > and INSERT RETURNING in combination with RETURN QUERY. It appears that in > the parallelism updates, RETURN QUERY now only accepts SELECT queries. Yeah, that's a mistake, previously reported and fixed at https://git.postgresql.org/gitweb/?p=postgresql.git&a=commitdiff&h=e0eba586b regards, tom lane
