Add some regression tests for composite-type operations.

src/test/regress/expected/rowtypes.out

+--
+-- ROWTYPES
+--
+-- Make both a standalone composite type and a table rowtype
+create type complex as (r float8, i float8);
+create temp table fullname (first text, last text);
+-- Nested composite
+create type quad as (c1 complex, c2 complex);
+-- Some simple tests of I/O conversions and row construction
+select (1.1,2.2)::complex, row((3.3,4.4),(5.5,null))::quad;
+    row    |          row           
+-----------+------------------------
+ (1.1,2.2) | ("(3.3,4.4)","(5.5,)")
+(1 row)
+
+select row('Joe', 'Blow')::fullname, '(Joe,Blow)'::fullname;
+    row     |  fullname  
+------------+------------
+ (Joe,Blow) | (Joe,Blow)
+(1 row)
+
+select '(Joe,von Blow)'::fullname, '(Joe,d''Blow)'::fullname;
+     fullname     |   fullname   
+------------------+--------------
+ (Joe,"von Blow") | (Joe,d'Blow)
+(1 row)
+
+select '(Joe,"von""Blow")'::fullname, '(Joe,d\\\\Blow)'::fullname;
+     fullname      |    fullname     
+-------------------+-----------------
+ (Joe,"von""Blow") | (Joe,"d\\Blow")
+(1 row)
+
+select '(Joe,"Blow,Jr")'::fullname;
+    fullname     
+-----------------
+ (Joe,"Blow,Jr")
+(1 row)
+
+select '(Joe,)'::fullname;	-- ok, null 2nd column
+ fullname 
+----------
+ (Joe,)
+(1 row)
+
+select '(Joe)'::fullname;	-- bad
+ERROR:  malformed record literal: "(Joe)"
+DETAIL:  Too few columns.
+select '(Joe,,)'::fullname;	-- bad
+ERROR:  malformed record literal: "(Joe,,)"
+DETAIL:  Too many columns.
+create temp table quadtable(f1 int, q quad);
+insert into quadtable values (1, ((3.3,4.4),(5.5,6.6)));
+insert into quadtable values (2, ((null,4.4),(5.5,6.6)));
+select * from quadtable;
+ f1 |             q             
+----+---------------------------
+  1 | ("(3.3,4.4)","(5.5,6.6)")
+  2 | ("(,4.4)","(5.5,6.6)")
+(2 rows)
+
+select f1, q.c1 from quadtable;		-- fails, q is a table reference
+ERROR:  relation "q" does not exist
+select f1, (q).c1, (qq.q).c1.i from quadtable qq;
+ f1 |    c1     |  i  
+----+-----------+-----
+  1 | (3.3,4.4) | 4.4
+  2 | (,4.4)    | 4.4
+(2 rows)
+
+create temp table people (fn fullname, bd date);
+insert into people values ('(Joe,Blow)', '1984-01-10');
+select * from people;
+     fn     |     bd     
+------------+------------
+ (Joe,Blow) | 01-10-1984
+(1 row)
+
+-- at the moment this will not work due to ALTER TABLE inadequacy:
+alter table fullname add column suffix text default '';
+ERROR:  cannot alter table "fullname" because column "people"."fn" uses its rowtype
+-- but this should work:
+alter table fullname add column suffix text default null;
+select * from people;
+     fn      |     bd     
+-------------+------------
+ (Joe,Blow,) | 01-10-1984
+(1 row)
+
+-- This fails at the moment, would like it to work though:
+update people set fn.suffix = 'Jr';
+ERROR:  syntax error at or near "." at character 21
+LINE 1: update people set fn.suffix = 'Jr';
+                            ^
+-- ugly workaround:
+update people set fn = ((fn).first, (fn).last, 'III');
+select * from people;
+       fn       |     bd     
+----------------+------------
+ (Joe,Blow,III) | 01-10-1984
+(1 row)
+
+-- The object here is to ensure that toasted references inside
+-- composite values don't cause problems.  The large f1 value will
+-- be toasted inside pp, it must still work after being copied to people.
+create temp table pp (f1 text);
+insert into pp values (repeat('abcdefghijkl', 100000));
+insert into people select ('Jim', f1, null)::fullname, current_date from pp;
+select (fn).first, substr((fn).last, 1, 20), length((fn).last) from people;
+ first |        substr        | length  
+-------+----------------------+---------
+ Joe   | Blow                 |       4
+ Jim   | abcdefghijklabcdefgh | 1200000
+(2 rows)
+

src/test/regress/parallel_schedule

@@ -74,7 +74,7 @@ test: select_views portals_p2 rules foreign_key cluster
 # The sixth group of parallel test
 # ----------
 # "plpgsql" cannot run concurrently with "rules"
-test: limit plpgsql copy2 temp domain rangefuncs prepare without_oid conversion truncate alter_table sequence polymorphism
+test: limit plpgsql copy2 temp domain rangefuncs prepare without_oid conversion truncate alter_table sequence polymorphism rowtypes
 
 # run stats by itself because its delay may be insufficient under heavy load
 test: stats

src/test/regress/serial_schedule

-# $PostgreSQL: pgsql/src/test/regress/serial_schedule,v 1.24 2004/01/11 04:58:17 neilc Exp $
+# $PostgreSQL: pgsql/src/test/regress/serial_schedule,v 1.25 2004/06/06 21:20:46 tgl Exp $
 # This should probably be in an order similar to parallel_schedule.
 test: boolean
 test: char
@@ -94,4 +94,5 @@ test: truncate
 test: alter_table
 test: sequence
 test: polymorphism
+test: rowtypes
 test: stats

src/test/regress/sql/rowtypes.sql

+--
+-- ROWTYPES
+--
+
+-- Make both a standalone composite type and a table rowtype
+
+create type complex as (r float8, i float8);
+
+create temp table fullname (first text, last text);
+
+-- Nested composite
+
+create type quad as (c1 complex, c2 complex);
+
+-- Some simple tests of I/O conversions and row construction
+
+select (1.1,2.2)::complex, row((3.3,4.4),(5.5,null))::quad;
+
+select row('Joe', 'Blow')::fullname, '(Joe,Blow)'::fullname;
+
+select '(Joe,von Blow)'::fullname, '(Joe,d''Blow)'::fullname;
+
+select '(Joe,"von""Blow")'::fullname, '(Joe,d\\\\Blow)'::fullname;
+
+select '(Joe,"Blow,Jr")'::fullname;
+
+select '(Joe,)'::fullname;	-- ok, null 2nd column
+select '(Joe)'::fullname;	-- bad
+select '(Joe,,)'::fullname;	-- bad
+
+create temp table quadtable(f1 int, q quad);
+
+insert into quadtable values (1, ((3.3,4.4),(5.5,6.6)));
+insert into quadtable values (2, ((null,4.4),(5.5,6.6)));
+
+select * from quadtable;
+
+select f1, q.c1 from quadtable;		-- fails, q is a table reference
+
+select f1, (q).c1, (qq.q).c1.i from quadtable qq;
+
+create temp table people (fn fullname, bd date);
+
+insert into people values ('(Joe,Blow)', '1984-01-10');
+
+select * from people;
+
+-- at the moment this will not work due to ALTER TABLE inadequacy:
+alter table fullname add column suffix text default '';
+
+-- but this should work:
+alter table fullname add column suffix text default null;
+
+select * from people;
+
+-- This fails at the moment, would like it to work though:
+update people set fn.suffix = 'Jr';
+
+-- ugly workaround:
+update people set fn = ((fn).first, (fn).last, 'III');
+
+select * from people;
+
+-- The object here is to ensure that toasted references inside
+-- composite values don't cause problems.  The large f1 value will
+-- be toasted inside pp, it must still work after being copied to people.
+
+create temp table pp (f1 text);
+insert into pp values (repeat('abcdefghijkl', 100000));
+
+insert into people select ('Jim', f1, null)::fullname, current_date from pp;
+
+select (fn).first, substr((fn).last, 1, 20), length((fn).last) from people;