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authorTom Lane <tgl@sss.pgh.pa.us>2022-07-17 17:27:50 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2022-07-17 17:27:50 -0400
commit288e499ba817ccb364b9bc826a4470f03ca23b72 (patch)
tree9c7954bab95da9494e31ef9cc7a950672266a7fb /contrib/postgres_fdw/sql/postgres_fdw.sql
parent1661c40b9deb22408864e487c9f0579f54182399 (diff)
downloadpostgresql-288e499ba817ccb364b9bc826a4470f03ca23b72.tar.gz
postgresql-288e499ba817ccb364b9bc826a4470f03ca23b72.zip
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/1423433.1652722406@sss.pgh.pa.us
Diffstat (limited to 'contrib/postgres_fdw/sql/postgres_fdw.sql')
-rw-r--r--contrib/postgres_fdw/sql/postgres_fdw.sql9
1 files changed, 9 insertions, 0 deletions
diff --git a/contrib/postgres_fdw/sql/postgres_fdw.sql b/contrib/postgres_fdw/sql/postgres_fdw.sql
index 58acd7dff5e..8c9697d3ab3 100644
--- a/contrib/postgres_fdw/sql/postgres_fdw.sql
+++ b/contrib/postgres_fdw/sql/postgres_fdw.sql
@@ -373,6 +373,15 @@ EXPLAIN (VERBOSE, COSTS OFF)
SELECT * FROM ft1 t1 WHERE t1.c1 === t1.c2 order by t1.c2 limit 1;
SELECT * FROM ft1 t1 WHERE t1.c1 === t1.c2 order by t1.c2 limit 1;
+-- check schema-qualification of regconfig constant
+CREATE TEXT SEARCH CONFIGURATION public.custom_search
+ (COPY = pg_catalog.english);
+EXPLAIN (VERBOSE, COSTS OFF)
+SELECT c1, to_tsvector('custom_search'::regconfig, c3) FROM ft1
+WHERE c1 = 642 AND length(to_tsvector('custom_search'::regconfig, c3)) > 0;
+SELECT c1, to_tsvector('custom_search'::regconfig, c3) FROM ft1
+WHERE c1 = 642 AND length(to_tsvector('custom_search'::regconfig, c3)) > 0;
+
-- ===================================================================
-- JOIN queries
-- ===================================================================