diff --git a/doc/src/sgml/ref/discard.sgml b/doc/src/sgml/ref/discard.sgml
index 65ebbae..abd3e28 100644
--- a/doc/src/sgml/ref/discard.sgml
+++ b/doc/src/sgml/ref/discard.sgml
@@ -21,7 +21,7 @@ PostgreSQL documentation
 
  <refsynopsisdiv>
 <synopsis>
-DISCARD { ALL | PLANS | TEMPORARY | TEMP }
+DISCARD { ALL | PLANS | SEQUENCES | TEMPORARY | TEMP }
 </synopsis>
  </refsynopsisdiv>
 
@@ -67,6 +67,15 @@ DISCARD { ALL | PLANS | TEMPORARY | TEMP }
    </varlistentry>
 
    <varlistentry>
+    <term><literal>SEQUENCES</literal></term>
+    <listitem>
+     <para>
+      Releases all internally cached sequences.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
     <term><literal>ALL</literal></term>
     <listitem>
      <para>
@@ -83,6 +92,7 @@ UNLISTEN *;
 SELECT pg_advisory_unlock_all();
 DISCARD PLANS;
 DISCARD TEMP;
+DISCARD SEQUENCES;
 </programlisting></para>
     </listitem>
    </varlistentry>
diff --git a/src/backend/commands/discard.c b/src/backend/commands/discard.c
index 76f3ab6..7cd727e 100644
--- a/src/backend/commands/discard.c
+++ b/src/backend/commands/discard.c
@@ -18,6 +18,7 @@
 #include "commands/async.h"
 #include "commands/discard.h"
 #include "commands/prepare.h"
+#include "commands/sequence.h"
 #include "utils/guc.h"
 #include "utils/portal.h"
 
@@ -39,6 +40,10 @@ DiscardCommand(DiscardStmt *stmt, bool isTopLevel)
 			ResetPlanCache();
 			break;
 
+		case DISCARD_SEQUENCES:
+			ReleaseSequenceCaches();
+			break;
+
 		case DISCARD_TEMP:
 			ResetTempTableNamespace();
 			break;
@@ -69,4 +74,5 @@ DiscardAll(bool isTopLevel)
 	LockReleaseAll(USER_LOCKMETHOD, true);
 	ResetPlanCache();
 	ResetTempTableNamespace();
+	ReleaseSequenceCaches();
 }
diff --git a/src/backend/commands/sequence.c b/src/backend/commands/sequence.c
index ff855d6..db2f317 100644
--- a/src/backend/commands/sequence.c
+++ b/src/backend/commands/sequence.c
@@ -1601,3 +1601,10 @@ seq_redo(XLogRecPtr lsn, XLogRecord *record)
 
 	pfree(localpage);
 }
+
+
+void
+ReleaseSequenceCaches()
+{
+	free(seqtab);
+}
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index ec69373..d056621 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -1672,7 +1672,7 @@ CheckPointStmt:
 
 /*****************************************************************************
  *
- * DISCARD { ALL | TEMP | PLANS }
+ * DISCARD { ALL | TEMP | PLANS | SEQUENCES }
  *
  *****************************************************************************/
 
@@ -1701,6 +1701,13 @@ DiscardStmt:
 					n->target = DISCARD_PLANS;
 					$$ = (Node *) n;
 				}
+			| DISCARD SEQUENCES
+				{
+					DiscardStmt *n = makeNode(DiscardStmt);
+					n->target = DISCARD_SEQUENCES;
+					$$ = (Node *) n;
+				}
+
 		;
 
 
diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index 7d2c812..2dc8a8c 100644
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -2374,7 +2374,7 @@ psql_completion(char *text, int start, int end)
 	else if (pg_strcasecmp(prev_wd, "DISCARD") == 0)
 	{
 		static const char *const list_DISCARD[] =
-		{"ALL", "PLANS", "TEMP", NULL};
+		{"ALL", "PLANS", "SEQUENCES", "TEMP", NULL};
 
 		COMPLETE_WITH_LIST(list_DISCARD);
 	}
diff --git a/src/include/commands/sequence.h b/src/include/commands/sequence.h
index d867754..3698332 100644
--- a/src/include/commands/sequence.h
+++ b/src/include/commands/sequence.h
@@ -77,5 +77,6 @@ extern void ResetSequence(Oid seq_relid);
 
 extern void seq_redo(XLogRecPtr lsn, XLogRecord *rptr);
 extern void seq_desc(StringInfo buf, uint8 xl_info, char *rec);
+extern void ReleaseSequenceCaches();
 
 #endif   /* SEQUENCE_H */
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index 2229ef0..2c0fda4 100644
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -2494,6 +2494,7 @@ typedef enum DiscardMode
 {
 	DISCARD_ALL,
 	DISCARD_PLANS,
+	DISCARD_SEQUENCES,
 	DISCARD_TEMP
 } DiscardMode;