From d90ced8bb22194cbb45f58beb0961251103aeff5 Mon Sep 17 00:00:00 2001
From: Robert Haas <rhaas@postgresql.org>
Date: Thu, 3 Oct 2013 16:17:18 -0400
Subject: Add DISCARD SEQUENCES command.
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DISCARD ALL will now discard cached sequence information, as well.

Fabrízio de Royes Mello, reviewed by Zoltán Böszörményi, with some
further tweaks by me.
---
 src/backend/commands/sequence.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/backend/commands/sequence.c')

diff --git a/src/backend/commands/sequence.c b/src/backend/commands/sequence.c
index ddfaf3bd293..3ec6b7654aa 100644
--- a/src/backend/commands/sequence.c
+++ b/src/backend/commands/sequence.c
@@ -1602,3 +1602,19 @@ seq_redo(XLogRecPtr lsn, XLogRecord *record)
 
 	pfree(localpage);
 }
+
+/*
+ * Flush cached sequence information.
+ */
+void
+ResetSequenceCaches(void)
+{
+	SeqTableData *next;
+
+	while (seqtab != NULL)
+	{
+		next = seqtab->next;
+		free(seqtab);
+		seqtab = seqtab->next;
+	}
+}
-- 
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