RESET SESSION, plus related new DDL commands. Patch from Marko Kreen,

[postgresql] / src / test / regress / sql / join.sql

diff --git a/src/test/regress/sql/join.sql b/src/test/regress/sql/join.sql
index ffc2afe6ed441e2ec996769fd5a4d49b8bee4bcd..71208d2d2d83822360030d32e33e1808b973de6d 100644 (file)
--- a/src/test/regress/sql/join.sql
+++ b/src/test/regress/sql/join.sql
@@ -334,6 +334,15 @@ select count(*) from tenk1 a where unique1 in
   (select unique1 from tenk1 b join tenk1 c using (unique1)
    where b.unique2 = 42);
 
+--
+-- regression test: check for failure to generate a plan with multiple
+-- degenerate IN clauses
+--
+select count(*) from tenk1 x where
+  x.unique1 in (select a.f1 from int4_tbl a,float8_tbl b where a.f1=b.f1) and
+  x.unique1 = 0 and
+  x.unique1 in (select aa.f1 from int4_tbl aa,float8_tbl bb where aa.f1=bb.f1);
+
 
 --
 -- Clean up
@@ -369,3 +378,24 @@ DELETE FROM t3 USING t1 JOIN t2 USING (a) WHERE t3.x > t1.a;
 SELECT * FROM t3;
 DELETE FROM t3 USING t3 t3_other WHERE t3.x = t3_other.x AND t3.y = t3_other.y;
 SELECT * FROM t3;
+
+--
+-- regression test for 8.1 merge right join bug
+--
+
+CREATE TEMP TABLE tt1 ( tt1_id int4, joincol int4 );
+INSERT INTO tt1 VALUES (1, 11);
+INSERT INTO tt1 VALUES (2, NULL);
+
+CREATE TEMP TABLE tt2 ( tt2_id int4, joincol int4 );
+INSERT INTO tt2 VALUES (21, 11);
+INSERT INTO tt2 VALUES (22, 11);
+
+set enable_hashjoin to off;
+set enable_nestloop to off;
+
+-- these should give the same results
+
+select tt1.*, tt2.* from tt1 left join tt2 on tt1.joincol = tt2.joincol;
+
+select tt1.*, tt2.* from tt2 right join tt1 on tt1.joincol = tt2.joincol;