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authorRobert Haas <rhaas@postgresql.org>2010-11-09 22:39:43 -0500
committerRobert Haas <rhaas@postgresql.org>2010-11-09 22:52:19 -0500
commit7ba6e4f0e08bd7bdf4d12974ac1e37fb0459c97c (patch)
tree0f7ff7825f6e5e8ed2e31be4126d8f2a8d6bc724 /src/backend/access
parent844ed5dc97d4374a4056f0f1cc3b0b78347c74c5 (diff)
downloadpostgresql-7ba6e4f0e08bd7bdf4d12974ac1e37fb0459c97c.tar.gz
postgresql-7ba6e4f0e08bd7bdf4d12974ac1e37fb0459c97c.zip
Add monitoring function pg_last_xact_replay_timestamp.
Fujii Masao, with a little wordsmithing by me.
Diffstat (limited to 'src/backend/access')
-rw-r--r--src/backend/access/transam/xlog.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 786d0c696d1..7708b93fffb 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -5605,6 +5605,24 @@ GetLatestXTime(void)
}
/*
+ * Returns timestamp of latest processed commit/abort record.
+ *
+ * When the server has been started normally without recovery the function
+ * returns NULL.
+ */
+Datum
+pg_last_xact_replay_timestamp(PG_FUNCTION_ARGS)
+{
+ TimestampTz xtime;
+
+ xtime = GetLatestXTime();
+ if (xtime == 0)
+ PG_RETURN_NULL();
+
+ PG_RETURN_TIMESTAMPTZ(xtime);
+}
+
+/*
* Returns bool with current recovery mode, a global state.
*/
Datum