aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--contrib/postgres_fdw/expected/postgres_fdw.out45
-rw-r--r--contrib/postgres_fdw/sql/postgres_fdw.sql10
2 files changed, 24 insertions, 31 deletions
diff --git a/contrib/postgres_fdw/expected/postgres_fdw.out b/contrib/postgres_fdw/expected/postgres_fdw.out
index b0636c9d366..08b30f83e0d 100644
--- a/contrib/postgres_fdw/expected/postgres_fdw.out
+++ b/contrib/postgres_fdw/expected/postgres_fdw.out
@@ -35,6 +35,9 @@ CREATE TABLE "S 1"."T 1" (
c8 user_enum,
CONSTRAINT t1_pkey PRIMARY KEY ("C 1")
);
+-- "S 1"."T 1" will be heavily updated below, so disable autovacuum for
+-- the table to avoid unexpected effects of that
+ALTER TABLE "S 1"."T 1" SET (autovacuum_enabled = 'false');
CREATE TABLE "S 1"."T 2" (
c1 int NOT NULL,
c2 text,
@@ -4244,10 +4247,6 @@ explain (verbose, costs off) select * from ft3 f, loct3 l
-- ===================================================================
-- test writable foreign table stuff
-- ===================================================================
--- Autovacuum on the remote side might affect remote estimates,
--- so use local stats on ft2 as well
-ALTER FOREIGN TABLE ft2 OPTIONS (SET use_remote_estimate 'false');
-ANALYZE ft2;
EXPLAIN (verbose, costs off)
INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20;
QUERY PLAN
@@ -5524,32 +5523,32 @@ UPDATE ft2 SET c3 = 'baz'
FROM ft4 INNER JOIN ft5 ON (ft4.c1 = ft5.c1)
WHERE ft2.c1 > 2000 AND ft2.c2 === ft4.c1
RETURNING ft2.*, ft4.*, ft5.*; -- can't be pushed down
- QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Update on public.ft2
Output: ft2.c1, ft2.c2, ft2.c3, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft4.c1, ft4.c2, ft4.c3, ft5.c1, ft5.c2, ft5.c3
Remote SQL: UPDATE "S 1"."T 1" SET c3 = $2 WHERE ctid = $1 RETURNING "C 1", c2, c3, c4, c5, c6, c7, c8
- -> Hash Join
+ -> Nested Loop
Output: ft2.c1, ft2.c2, NULL::integer, 'baz'::text, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft4.*, ft5.*, ft4.c1, ft4.c2, ft4.c3, ft5.c1, ft5.c2, ft5.c3
- Hash Cond: (ft4.c1 = ft5.c1)
+ Join Filter: (ft2.c2 === ft4.c1)
+ -> Foreign Scan on public.ft2
+ Output: ft2.c1, ft2.c2, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid
+ Remote SQL: SELECT "C 1", c2, c4, c5, c6, c7, c8, ctid FROM "S 1"."T 1" WHERE (("C 1" > 2000)) FOR UPDATE
-> Foreign Scan
- Output: ft2.c1, ft2.c2, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft4.*, ft4.c1, ft4.c2, ft4.c3
- Filter: (ft2.c2 === ft4.c1)
- Relations: (public.ft2) INNER JOIN (public.ft4)
- Remote SQL: SELECT r1."C 1", r1.c2, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8, r1.ctid, CASE WHEN (r2.*)::text IS NOT NULL THEN ROW(r2.c1, r2.c2, r2.c3) END, r2.c1, r2.c2, r2.c3 FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 3" r2 ON (((r1."C 1" > 2000)))) FOR UPDATE OF r1
- -> Nested Loop
- Output: ft2.c1, ft2.c2, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft4.*, ft4.c1, ft4.c2, ft4.c3
- -> Foreign Scan on public.ft2
- Output: ft2.c1, ft2.c2, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid
- Remote SQL: SELECT "C 1", c2, c4, c5, c6, c7, c8, ctid FROM "S 1"."T 1" WHERE (("C 1" > 2000)) FOR UPDATE
+ Output: ft4.*, ft4.c1, ft4.c2, ft4.c3, ft5.*, ft5.c1, ft5.c2, ft5.c3
+ Relations: (public.ft4) INNER JOIN (public.ft5)
+ Remote SQL: SELECT CASE WHEN (r2.*)::text IS NOT NULL THEN ROW(r2.c1, r2.c2, r2.c3) END, r2.c1, r2.c2, r2.c3, CASE WHEN (r3.*)::text IS NOT NULL THEN ROW(r3.c1, r3.c2, r3.c3) END, r3.c1, r3.c2, r3.c3 FROM ("S 1"."T 3" r2 INNER JOIN "S 1"."T 4" r3 ON (((r2.c1 = r3.c1))))
+ -> Hash Join
+ Output: ft4.*, ft4.c1, ft4.c2, ft4.c3, ft5.*, ft5.c1, ft5.c2, ft5.c3
+ Hash Cond: (ft4.c1 = ft5.c1)
-> Foreign Scan on public.ft4
Output: ft4.*, ft4.c1, ft4.c2, ft4.c3
Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 3"
- -> Hash
- Output: ft5.*, ft5.c1, ft5.c2, ft5.c3
- -> Foreign Scan on public.ft5
- Output: ft5.*, ft5.c1, ft5.c2, ft5.c3
- Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4"
+ -> Hash
+ Output: ft5.*, ft5.c1, ft5.c2, ft5.c3
+ -> Foreign Scan on public.ft5
+ Output: ft5.*, ft5.c1, ft5.c2, ft5.c3
+ Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4"
(24 rows)
UPDATE ft2 SET c3 = 'baz'
@@ -6003,9 +6002,7 @@ select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1;
407 | 100
(13 rows)
--- Go back to use remote-estimate mode on ft2
VACUUM ANALYZE "S 1"."T 1";
-ALTER FOREIGN TABLE ft2 OPTIONS (SET use_remote_estimate 'true');
-- Above DMLs add data with c6 as NULL in ft1, so test ORDER BY NULLS LAST and NULLs
-- FIRST behavior here.
-- ORDER BY DESC NULLS LAST options
diff --git a/contrib/postgres_fdw/sql/postgres_fdw.sql b/contrib/postgres_fdw/sql/postgres_fdw.sql
index 9e477292784..7f4d0dab258 100644
--- a/contrib/postgres_fdw/sql/postgres_fdw.sql
+++ b/contrib/postgres_fdw/sql/postgres_fdw.sql
@@ -39,6 +39,9 @@ CREATE TABLE "S 1"."T 1" (
c8 user_enum,
CONSTRAINT t1_pkey PRIMARY KEY ("C 1")
);
+-- "S 1"."T 1" will be heavily updated below, so disable autovacuum for
+-- the table to avoid unexpected effects of that
+ALTER TABLE "S 1"."T 1" SET (autovacuum_enabled = 'false');
CREATE TABLE "S 1"."T 2" (
c1 int NOT NULL,
c2 text,
@@ -1068,11 +1071,6 @@ explain (verbose, costs off) select * from ft3 f, loct3 l
-- ===================================================================
-- test writable foreign table stuff
-- ===================================================================
--- Autovacuum on the remote side might affect remote estimates,
--- so use local stats on ft2 as well
-ALTER FOREIGN TABLE ft2 OPTIONS (SET use_remote_estimate 'false');
-ANALYZE ft2;
-
EXPLAIN (verbose, costs off)
INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20;
INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20;
@@ -1213,9 +1211,7 @@ commit;
select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1;
select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1;
--- Go back to use remote-estimate mode on ft2
VACUUM ANALYZE "S 1"."T 1";
-ALTER FOREIGN TABLE ft2 OPTIONS (SET use_remote_estimate 'true');
-- Above DMLs add data with c6 as NULL in ft1, so test ORDER BY NULLS LAST and NULLs
-- FIRST behavior here.
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-31 17:30:28 +0000