Avoid syscache lookup while building a WAIT FOR tuple descriptor Use TupleDescInitBuiltinEntry instead of TupleDescInitEntry when building the result tuple descriptor for the WAIT FOR command. This avoids a syscache access that could re-establish a catalog snapshot after we've explicitly released all snapshots before the wait.
Discussion: https://postgr.es/m/CABPTF7U%2BSUnJX_woQYGe%3D%3DR9Oz%2B-V6X0VO2stBLPGfJmH_LEhw%40mail.gmail.com Author: Xuneng Zhou <[email protected]> Reviewed-by: Alexander Korotkov <[email protected]> Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/834038c1f8d52f51666c60ec774bbbf590f4e8c6 Modified Files -------------- src/backend/commands/wait.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
