From aab0b8f5eb6d1ad9ea09cc59bfe75e4e4d15718c Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Fri, 5 Apr 2002 11:52:38 +0000
Subject: [PATCH] I was tinkering with creating rules on views (so, for
instance, one could insert on a view), and noticed that psql wouldn't show
the list of rules set up on a view, like it does for tables.
The fix was extremely simple, so I figured I'd share it. Not sure what
the standard is for communicating these things, so I've attached the diff
file for /src/bin/psql/describe.c.
Paul (?)
---
src/bin/psql/describe.c | 49 ++++++++++++++++++++++++++++++++++++-----
1 file changed, 44 insertions(+), 5 deletions(-)
diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index 0c6f5441cad..68bbcfb8026 100644
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -3,7 +3,7 @@
*
* Copyright 2000 by PostgreSQL Global Development Group
*
- * $Header: /cvsroot/pgsql/src/bin/psql/describe.c,v 1.47 2002/03/20 19:44:45 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/bin/psql/describe.c,v 1.48 2002/04/05 11:52:38 momjian Exp $
*/
#include "postgres_fe.h"
#include "describe.h"
@@ -692,12 +692,51 @@ describeTableDetails(const char *name, bool desc)
}
else if (view_def)
{
+ PGresult *result = NULL;
+ int rule_count = 0;
+ int count_footers = 0;
+
+ /* count rules */
+ if (!error && tableinfo.hasrules)
+ {
+ sprintf(buf,
+ "SELECT r.rulename\n"
+ "FROM pg_rewrite r, pg_class c\n"
+ "WHERE c.relname='%s' AND c.oid = r.ev_class\n"
+ "AND r.rulename NOT LIKE '_RET%%'",
+ name);
+ result = PSQLexec(buf);
+ if (!result)
+ error = true;
+ else
+ rule_count = PQntuples(result);
+ }
+
/* Footer information about a view */
- footers = xmalloc(2 * sizeof(*footers));
- footers[0] = xmalloc(64 + strlen(view_def));
- snprintf(footers[0], 64 + strlen(view_def),
+ footers = xmalloc((rule_count + 2) * sizeof(*footers));
+ footers[count_footers] = xmalloc(64 + strlen(view_def));
+ snprintf(footers[count_footers], 64 + strlen(view_def),
_("View definition: %s"), view_def);
- footers[1] = NULL;
+ count_footers++;
+
+ /* print rules */
+ for (i = 0; i < rule_count; i++)
+ {
+ char *s = _("Rules");
+
+ if (i == 0)
+ snprintf(buf, sizeof(buf), "%s: %s", s, PQgetvalue(result, i, 0));
+ else
+ snprintf(buf, sizeof(buf), "%*s %s", (int) strlen(s), "", PQgetvalue(result, i, 0));
+ if (i < rule_count - 1)
+ strcat(buf, ",");
+
+ footers[count_footers++] = xstrdup(buf);
+ }
+ PQclear(result);
+
+ footers[count_footers] = NULL;
+
}
else if (tableinfo.relkind == 'r')
{
--
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