From 1b5cffacdffaf1cdedb60ff4bc160e65261eb4eb Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sun, 12 Aug 2001 21:35:19 +0000
Subject: Make ALTER TABLE RENAME on a view rename the view's on-select rule
 too. Needed to keep pg_dump from getting confused.

---
 src/backend/rewrite/rewriteSupport.c | 41 ++++++++++++++++++++++++++++++++++--
 1 file changed, 39 insertions(+), 2 deletions(-)

(limited to 'src/backend/rewrite/rewriteSupport.c')

diff --git a/src/backend/rewrite/rewriteSupport.c b/src/backend/rewrite/rewriteSupport.c
index 7578acbcedd..bc2f04932a4 100644
--- a/src/backend/rewrite/rewriteSupport.c
+++ b/src/backend/rewrite/rewriteSupport.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteSupport.c,v 1.48 2001/03/22 03:59:44 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteSupport.c,v 1.49 2001/08/12 21:35:19 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -20,15 +20,52 @@
 #include "rewrite/rewriteSupport.h"
 #include "utils/syscache.h"
 
+#ifdef MULTIBYTE
+#include "mb/pg_wchar.h"
+#endif
 
+
+/*
+ * Is there a rule by the given name?
+ */
 bool
-IsDefinedRewriteRule(char *ruleName)
+IsDefinedRewriteRule(const char *ruleName)
 {
 	return SearchSysCacheExists(RULENAME,
 								PointerGetDatum(ruleName),
 								0, 0, 0);
 }
 
+/*
+ * makeViewRetrieveRuleName
+ *
+ * Given a view name, returns the name for the associated ON SELECT rule.
+ *
+ * XXX this is not the only place in the backend that knows about the _RET
+ * name-forming convention.
+ */
+char *
+MakeRetrieveViewRuleName(const char *viewName)
+{
+	char	   *buf;
+	int			buflen,
+				maxlen;
+
+	buflen = strlen(viewName) + 5;
+	buf = palloc(buflen);
+	snprintf(buf, buflen, "_RET%s", viewName);
+	/* clip to less than NAMEDATALEN bytes, if necessary */
+#ifdef MULTIBYTE
+	maxlen = pg_mbcliplen(buf, strlen(buf), NAMEDATALEN - 1);
+#else
+	maxlen = NAMEDATALEN - 1;
+#endif
+	if (maxlen < buflen)
+		buf[maxlen] = '\0';
+
+	return buf;
+}
+
 /*
  * SetRelationRuleStatus
  *		Set the value of the relation's relhasrules field in pg_class;
-- 
cgit v1.2.3