From fb22b3209536974a44d8978f1ba2d3bdffd14c1c Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Wed, 20 Oct 2004 16:04:50 +0000
Subject: Allow functions returning void or cstring to appear in FROM clause,
 to make life cushy for the JDBC driver.  Centralize the decision-making that
 affects this by inventing a get_type_func_class() function, rather than
 adding special cases in half a dozen places.

---
 src/include/utils/lsyscache.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/include')

diff --git a/src/include/utils/lsyscache.h b/src/include/utils/lsyscache.h
index 496d2bcf11..3a016b7a52 100644
--- a/src/include/utils/lsyscache.h
+++ b/src/include/utils/lsyscache.h
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.90 2004/08/29 05:06:59 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.91 2004/10/20 16:04:50 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -24,6 +24,15 @@ typedef enum IOFuncSelector
 	IOFunc_send
 } IOFuncSelector;
 
+/* Type categories for get_type_func_class */
+typedef enum TypeFuncClass
+{
+	TYPEFUNC_SCALAR,
+	TYPEFUNC_COMPOSITE,
+	TYPEFUNC_RECORD,
+	TYPEFUNC_OTHER
+} TypeFuncClass;
+
 extern bool op_in_opclass(Oid opno, Oid opclass);
 extern void get_op_opclass_properties(Oid opno, Oid opclass,
 						  int *strategy, Oid *subtype,
@@ -85,6 +94,7 @@ extern char get_typstorage(Oid typid);
 extern int32 get_typtypmod(Oid typid);
 extern Node *get_typdefault(Oid typid);
 extern char get_typtype(Oid typid);
+extern TypeFuncClass get_type_func_class(Oid typid);
 extern Oid	get_typ_typrelid(Oid typid);
 extern Oid	get_element_type(Oid typid);
 extern Oid	get_array_type(Oid typid);
-- 
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