From 31c7cb4e9a3aa6581221cc9db222735d90fb33fd Mon Sep 17 00:00:00 2001
From: Ian Barwick <barwick@gmail.com>
Date: Fri, 15 Sep 2017 17:13:17 +0900
Subject: [PATCH] Fixes for 9.3 support

---
 dbutils.c |  4 ----
 repmgr.c  | 17 +++++++++++++++++
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/dbutils.c b/dbutils.c
index 00e02ecb..1cc83377 100644
--- a/dbutils.c
+++ b/dbutils.c
@@ -3619,10 +3619,6 @@ request_vote(PGconn *conn, t_node_info *this_node, t_node_info *other_node, int
 					  "SELECT repmgr.request_vote(%i, %i)",
 					  this_node->node_id,
 					  electoral_term);
-/*					  "SELECT repmgr.request_vote(%i, '%X/%X'::pg_lsn)",
-					  this_node->node_id,
-					  (uint32) (last_wal_receive_lsn >> 32),
-					  (uint32) last_wal_receive_lsn);*/
 
 	res = PQexec(conn, query.data);
 	termPQExpBuffer(&query);
diff --git a/repmgr.c b/repmgr.c
index de1deb3f..22f62a4c 100644
--- a/repmgr.c
+++ b/repmgr.c
@@ -333,7 +333,12 @@ request_vote(PG_FUNCTION_ARGS)
 	{
 		SPI_finish();
 		elog(WARNING, "unable to retrieve last received LSN");
+
+#if (PG_VERSION_NUM >= 90400)
 		PG_RETURN_LSN(InvalidOid);
+#else
+        PG_RETURN_TEXT_P(cstring_to_text("0/0"));
+#endif
 	}
 
 	our_lsn = DatumGetLSN(SPI_getbinval(SPI_tuptable->vals[0],
@@ -354,7 +359,19 @@ request_vote(PG_FUNCTION_ARGS)
 	/* should we free "query" here? */
 	SPI_finish();
 
+#if (PG_VERSION_NUM >= 90400)
 	PG_RETURN_LSN(our_lsn);
+#else
+	{
+		char lsn_text[64] = "";
+		snprintf(lsn_text, 64,
+				 "%X/%X",
+				 (uint32) (our_lsn >> 32),
+				 (uint32) our_lsn);
+
+        PG_RETURN_TEXT_P(cstring_to_text(lsn_text));
+	}
+#endif
 #else
 	PG_RETURN(InvalidOid);
 #endif