Suppress failures in parallel regress tests due to use of same table

name in two different tests.  This solution does not meet with universal
approval, so it may get changed later ...

src/test/regress/expected/alter_table.out

@@ -314,9 +314,11 @@ NOTICE:  DROP TABLE implicitly drops referential integrity trigger from table "t
 NOTICE:  DROP TABLE implicitly drops referential integrity trigger from table "tmp2"
 DROP TABLE tmp2;
 -- Foreign key adding test with mixed types
-CREATE TABLE PKTABLE (ptest1 int PRIMARY KEY);
+-- Note: these tables are TEMP to avoid name conflicts when this test
+-- is run in parallel with foreign_key.sql.
+CREATE TEMP TABLE PKTABLE (ptest1 int PRIMARY KEY);
 NOTICE:  CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
-CREATE TABLE FKTABLE (ftest1 text);
+CREATE TEMP TABLE FKTABLE (ftest1 text);
 -- This next should fail, because text=int does not exist
 ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
 NOTICE:  ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
@@ -331,7 +333,7 @@ ERROR:  Unable to identify an operator '=' for types 'text' and 'int4'
 -- This should succeed, even though they are different types
 -- because varchar=int does exist
 DROP TABLE FKTABLE;
-CREATE TABLE FKTABLE (ftest1 varchar);
+CREATE TEMP TABLE FKTABLE (ftest1 varchar);
 ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
 NOTICE:  ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
 -- As should this
@@ -341,32 +343,35 @@ DROP TABLE pktable;
 NOTICE:  DROP TABLE implicitly drops referential integrity trigger from table "fktable"
 NOTICE:  DROP TABLE implicitly drops referential integrity trigger from table "fktable"
 DROP TABLE fktable;
-CREATE TABLE PKTABLE (ptest1 int, ptest2 text, PRIMARY KEY(ptest1, ptest2));
+CREATE TEMP TABLE PKTABLE (ptest1 int, ptest2 text,
+                           PRIMARY KEY(ptest1, ptest2));
 NOTICE:  CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
 -- This should fail, because we just chose really odd types
-CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
+CREATE TEMP TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
 ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable;
 NOTICE:  ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
 ERROR:  Unable to identify an operator '=' for types 'cidr' and 'int4'
 	You will have to retype this query using an explicit cast
 -- Again, so should this...
 DROP TABLE FKTABLE;
-CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
-ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable(ptest1, ptest2);
+CREATE TEMP TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2)
+     references pktable(ptest1, ptest2);
 NOTICE:  ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
 ERROR:  Unable to identify an operator '=' for types 'cidr' and 'int4'
 	You will have to retype this query using an explicit cast
 -- This fails because we mixed up the column ordering
 DROP TABLE FKTABLE;
-CREATE TABLE FKTABLE (ftest1 int, ftest2 text);
-ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable(ptest2, ptest1);
+CREATE TEMP TABLE FKTABLE (ftest1 int, ftest2 text);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2)
+     references pktable(ptest2, ptest1);
 NOTICE:  ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
 ERROR:  Unable to identify an operator '=' for types 'int4' and 'text'
 	You will have to retype this query using an explicit cast
 -- As does this...
-ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest2, ftest1) references pktable(ptest1, ptest2);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest2, ftest1)
+     references pktable(ptest1, ptest2);
 NOTICE:  ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
 ERROR:  Unable to identify an operator '=' for types 'text' and 'int4'
 	You will have to retype this query using an explicit cast
-DROP TABLE FKTABLE;
-DROP TABLE PKTABLE;
+-- temp tables should go away by themselves, need not drop them.

src/test/regress/sql/alter_table.sql

@@ -214,8 +214,11 @@ DROP TABLE tmp2;
 
 -- Foreign key adding test with mixed types
 
-CREATE TABLE PKTABLE (ptest1 int PRIMARY KEY);
-CREATE TABLE FKTABLE (ftest1 text);
+-- Note: these tables are TEMP to avoid name conflicts when this test
+-- is run in parallel with foreign_key.sql.
+
+CREATE TEMP TABLE PKTABLE (ptest1 int PRIMARY KEY);
+CREATE TEMP TABLE FKTABLE (ftest1 text);
 -- This next should fail, because text=int does not exist
 ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
 -- This should also fail for the same reason, but here we
@@ -224,27 +227,30 @@ ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable(ptest1);
 -- This should succeed, even though they are different types
 -- because varchar=int does exist
 DROP TABLE FKTABLE;
-CREATE TABLE FKTABLE (ftest1 varchar);
+CREATE TEMP TABLE FKTABLE (ftest1 varchar);
 ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
 -- As should this
 ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable(ptest1);
 DROP TABLE pktable;
 DROP TABLE fktable;
 
-CREATE TABLE PKTABLE (ptest1 int, ptest2 text, PRIMARY KEY(ptest1, ptest2));
+CREATE TEMP TABLE PKTABLE (ptest1 int, ptest2 text,
+                           PRIMARY KEY(ptest1, ptest2));
 -- This should fail, because we just chose really odd types
-CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
+CREATE TEMP TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
 ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable;
 -- Again, so should this...
 DROP TABLE FKTABLE;
-CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
-ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable(ptest1, ptest2);
+CREATE TEMP TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2)
+     references pktable(ptest1, ptest2);
 -- This fails because we mixed up the column ordering
 DROP TABLE FKTABLE;
-CREATE TABLE FKTABLE (ftest1 int, ftest2 text);
-ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable(ptest2, ptest1);
+CREATE TEMP TABLE FKTABLE (ftest1 int, ftest2 text);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2)
+     references pktable(ptest2, ptest1);
 -- As does this...
-ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest2, ftest1) references pktable(ptest1, ptest2);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest2, ftest1)
+     references pktable(ptest1, ptest2);
 
-DROP TABLE FKTABLE;
-DROP TABLE PKTABLE;
+-- temp tables should go away by themselves, need not drop them.