Ok. Updated patch attached.

- domain.patch -> source patch against pgsql in cvs
- drop_domain.sgml and create_domain.sgml -> New doc/src/sgml/ref docs

- dominfo.txt -> basic domain related queries I used for testing
[ ADDED TO /doc]

Enables domains of array elements -> CREATE DOMAIN dom int4[3][2];

Uses a typbasetype column to describe the origin of the domain.

Copies data to attnotnull rather than processing in execMain().

Some documentation differences from earlier.

If this is approved, I'll start working on pg_dump, and a \dD <domain>
option in psql, and regression tests.  I don't really feel like doing
those until the system table structure settles for pg_type.


CHECKS when added, will also be copied to to the table attributes.  FK
Constraints (if I ever figure out how) will be done similarly.  Both
will lbe handled by MergeDomainAttributes() which is called shortly
before MergeAttributes().

Rod Taylor

1 files changed, 15 insertions, 1 deletions

diff --git a/src/backend/nodes/equalfuncs.c b/src/backend/nodes/equalfuncs.c
index 661190dbaa8..962471a5a97 100644
--- a/src/backend/nodes/equalfuncs.c
+++ b/src/backend/nodes/equalfuncs.c
@@ -20,7 +20,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.113 2002/03/06 06:09:49 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.114 2002/03/06 20:34:48 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1096,6 +1096,17 @@ _equalLoadStmt(LoadStmt *a, LoadStmt *b)
 }
 
 static bool
+_equalCreateDomainStmt(CreateDomainStmt *a, CreateDomainStmt *b)
+{
+	if (!equalstr(a->domainname, b->domainname))
+		return false;
+	if (!equal(a->typename, b->typename))
+		return false;
+
+	return true;
+}
+
+static bool
 _equalCreatedbStmt(CreatedbStmt *a, CreatedbStmt *b)
 {
 	if (!equalstr(a->dbname, b->dbname))
@@ -2011,6 +2022,9 @@ equal(void *a, void *b)
 		case T_LoadStmt:
 			retval = _equalLoadStmt(a, b);
 			break;
+		case T_CreateDomainStmt:
+			retval = _equalCreateDomainStmt(a, b);
+			break;
 		case T_CreatedbStmt:
 			retval = _equalCreatedbStmt(a, b);
 			break;