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postgres_fdw: Attmempt to stabilize regression tests.

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Even after commit 882ea509fe, some
buildfarm members are still failing in the postgres_fdw tests.
Try to fix that by disabling use of remote statistics for some
test cases.

Etsuro Fujita

Discussion: http://postgr.es/m/5A7D76CF.8080601@lab.ntt.co.jp
This commit is contained in:
Robert Haas
2018-02-09 15:24:35 -05:00
parent b78d0160da
commit 958e20e42d
2 changed files with 34 additions and 18 deletions
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9
contrib/postgres_fdw/sql/postgres_fdw.sql
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@ -1068,6 +1068,11 @@ 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;
@ -1208,6 +1213,10 @@ 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.
-- ORDER BY DESC NULLS LAST options