From 88bd709b5041f1215ac7644408b2b540a3b7b582 Mon Sep 17 00:00:00 2001
From: Marko Kreen <markokr@gmail.com>
Date: Thu, 12 Apr 2012 14:33:29 +0300
Subject: [PATCH] Provide get_role_oid() on older Postgres

---
 src/cluster.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/cluster.c b/src/cluster.c
index fc59c36..ead16d5 100644
--- a/src/cluster.c
+++ b/src/cluster.c
@@ -963,6 +963,23 @@ get_userinfo(ProxyCluster *cluster, Oid user_oid)
 	return userinfo;
 }
 
+#if PG_VERSION_NUM < 90100
+
+static Oid
+get_role_oid(const char *rolname, bool missing_ok)
+{
+	Oid         oid;
+
+	oid = GetSysCacheOid1(AUTHNAME, CStringGetDatum(rolname));
+	if (!OidIsValid(oid) && !missing_ok)
+		ereport(ERROR,
+				(errcode(ERRCODE_UNDEFINED_OBJECT),
+				 errmsg("role \"%s\" does not exist", rolname)));
+	return oid;
+}
+
+#endif
+
 /*
  * Refresh the cluster.
  */
@@ -971,7 +988,7 @@ refresh_cluster(ProxyFunction *func, ProxyCluster *cluster)
 {
 	ConnUserInfo *uinfo;
 	ProxyConfig *cf = &cluster->config;
-	Oid user_oid;
+	Oid user_oid = InvalidOid;
 
 	/*
 	 * Decide which user to use for connections.
-- 
2.39.5