Support SET FROM CURRENT in CREATE/ALTER FUNCTION, ALTER DATABASE, ALTER ROLE.

(Actually, it works as a plain statement too, but I didn't document that
because it seems a bit useless.)  Unify VariableResetStmt with
VariableSetStmt, and clean up some ancient cruft in the representation of
same.

1 files changed, 4 insertions, 18 deletions

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index 932da9f4d23..b6c6331d170 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -15,7 +15,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.381 2007/08/31 01:44:05 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.382 2007/09/03 18:46:30 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2525,8 +2525,7 @@ _copyAlterDatabaseSetStmt(AlterDatabaseSetStmt *from)
 	AlterDatabaseSetStmt *newnode = makeNode(AlterDatabaseSetStmt);
 
 	COPY_STRING_FIELD(dbname);
-	COPY_STRING_FIELD(variable);
-	COPY_NODE_FIELD(value);
+	COPY_NODE_FIELD(setstmt);
 
 	return newnode;
 }
@@ -2597,6 +2596,7 @@ _copyVariableSetStmt(VariableSetStmt *from)
 {
 	VariableSetStmt *newnode = makeNode(VariableSetStmt);
 
+	COPY_SCALAR_FIELD(kind);
 	COPY_STRING_FIELD(name);
 	COPY_NODE_FIELD(args);
 	COPY_SCALAR_FIELD(is_local);
@@ -2614,16 +2614,6 @@ _copyVariableShowStmt(VariableShowStmt *from)
 	return newnode;
 }
 
-static VariableResetStmt *
-_copyVariableResetStmt(VariableResetStmt *from)
-{
-	VariableResetStmt *newnode = makeNode(VariableResetStmt);
-
-	COPY_STRING_FIELD(name);
-
-	return newnode;
-}
-
 static DiscardStmt *
 _copyDiscardStmt(DiscardStmt *from)
 {
@@ -2746,8 +2736,7 @@ _copyAlterRoleSetStmt(AlterRoleSetStmt *from)
 	AlterRoleSetStmt *newnode = makeNode(AlterRoleSetStmt);
 
 	COPY_STRING_FIELD(role);
-	COPY_STRING_FIELD(variable);
-	COPY_NODE_FIELD(value);
+	COPY_NODE_FIELD(setstmt);
 
 	return newnode;
 }
@@ -3428,9 +3417,6 @@ copyObject(void *from)
 		case T_VariableShowStmt:
 			retval = _copyVariableShowStmt(from);
 			break;
-		case T_VariableResetStmt:
-			retval = _copyVariableResetStmt(from);
-			break;
 		case T_DiscardStmt:
 			retval = _copyDiscardStmt(from);
 			break;