postgres_fdw: set search_path to 'pg_catalog' while deparsing constants. The motivation for this is to ensure successful transmission of the values of constants of regconfig and other reg* types. The remote will be reading them with search_path = 'pg_catalog', so schema qualification is necessary when referencing objects in other schemas.
Per bug #17483 from Emmanuel Quincerot. Back-patch to all supported versions. (There's some other stuff to do here, but it's less back-patchable.) Discussion: https://postgr.es/m/[email protected] Branch ------ REL_12_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/288e499ba817ccb364b9bc826a4470f03ca23b72 Modified Files -------------- contrib/postgres_fdw/expected/postgres_fdw.out | 20 ++++++++++++++++++++ contrib/postgres_fdw/postgres_fdw.c | 8 ++++++++ contrib/postgres_fdw/sql/postgres_fdw.sql | 9 +++++++++ 3 files changed, 37 insertions(+)
