Initial commit

sql_utils/repmgr_wrapper_funcs.c

@@ -0,0 +1,36 @@
+/*
+ * repmgr_wrapper_funcs.c
+ * Copyright (c) 2ndQuadrant, 2010
+ *
+ * Expose some backend functions in SQL
+ */
+
+#include "postgres.h"
+#include "fmgr.h"
+#include "access/xlog.h"
+#include "storage/procarray.h"
+
+PG_MODULE_MAGIC;
+
+Datum last_xlog_replay_timestamp(PG_FUNCTION_ARGS);
+Datum oldest_xmin(PG_FUNCTION_ARGS);
+
+PG_FUNCTION_INFO_V1(last_xlog_replay_timestamp);
+
+Datum
+last_xlog_replay_timestamp(PG_FUNCTION_ARGS)
+{
+	if (!InRecovery)
+		PG_RETURN_NULL();
+	else
+	    PG_RETURN_TIMESTAMPTZ(GetLatestXLogTime());
+}
+
+
+PG_FUNCTION_INFO_V1(oldest_xmin);
+
+Datum
+oldest_xmin(PG_FUNCTION_ARGS)
+{
+	    PG_RETURN_INT64(GetOldestXmin(false, false));
+}