diff --git a/src/backend/utils/adt/xid.c b/src/backend/utils/adt/xid.c
index 6b617653b7027bee7691a44db5f2123ab411281c..c93ff4da737065115f4a793048368d5a86751f26 100644
--- a/src/backend/utils/adt/xid.c
+++ b/src/backend/utils/adt/xid.c
@@ -87,6 +87,18 @@ xideq(PG_FUNCTION_ARGS)
PG_RETURN_BOOL(TransactionIdEquals(xid1, xid2));
}
+/*
+ * xidneq - are two xids different?
+ */
+Datum
+xidneq(PG_FUNCTION_ARGS)
+{
+ TransactionId xid1 = PG_GETARG_TRANSACTIONID(0);
+ TransactionId xid2 = PG_GETARG_TRANSACTIONID(1);
+
+ PG_RETURN_BOOL(!TransactionIdEquals(xid1, xid2));
+}
+
/*
* xid_age - compute age of an XID (relative to latest stable xid)
*/
diff --git a/src/include/catalog/catversion.h b/src/include/catalog/catversion.h
index 15e0b97a6a1f31bcd01bc15a36f0c84fcbe810f1..eba4150a1cbccbb2206118cd64c3ef02c5497639 100644
--- a/src/include/catalog/catversion.h
+++ b/src/include/catalog/catversion.h
@@ -53,6 +53,6 @@
*/
/* yyyymmddN */
-#define CATALOG_VERSION_NO 201510161
+#define CATALOG_VERSION_NO 201511071
#endif
diff --git a/src/include/catalog/pg_operator.h b/src/include/catalog/pg_operator.h
index eec9c60c505a3ec8611872cf52fbff46bee3330b..e79ce57f6ebfa0bc3b5873ae160f9e5ce2042b70 100644
--- a/src/include/catalog/pg_operator.h
+++ b/src/include/catalog/pg_operator.h
@@ -144,10 +144,14 @@ DESCR("prepend element onto front of array");
DATA(insert OID = 375 ( "||" PGNSP PGUID b f f 2277 2277 2277 0 0 array_cat - - ));
DESCR("concatenate");
-DATA(insert OID = 352 ( "=" PGNSP PGUID b f t 28 28 16 352 0 xideq eqsel eqjoinsel ));
+DATA(insert OID = 352 ( "=" PGNSP PGUID b f t 28 28 16 352 3315 xideq eqsel eqjoinsel ));
DESCR("equal");
-DATA(insert OID = 353 ( "=" PGNSP PGUID b f f 28 23 16 0 0 xideqint4 eqsel eqjoinsel ));
+DATA(insert OID = 353 ( "=" PGNSP PGUID b f f 28 23 16 0 3316 xideqint4 eqsel eqjoinsel ));
DESCR("equal");
+DATA(insert OID = 3315 ( "<>" PGNSP PGUID b f f 28 28 16 3315 352 xidneq neqsel neqjoinsel ));
+DESCR("not equal");
+DATA(insert OID = 3316 ( "<>" PGNSP PGUID b f f 28 23 16 0 353 xidneqint4 neqsel neqjoinsel ));
+DESCR("not equal");
DATA(insert OID = 388 ( "!" PGNSP PGUID r f f 20 0 1700 0 0 numeric_fac - - ));
DESCR("factorial");
DATA(insert OID = 389 ( "!!" PGNSP PGUID l f f 0 20 1700 0 0 numeric_fac - - ));
diff --git a/src/include/catalog/pg_proc.h b/src/include/catalog/pg_proc.h
index 26d189f561f61bd7529bf6b1336bae6a276d4b1c..d8640db1454b88f72ad61706c1733c91b70bbb4c 100644
--- a/src/include/catalog/pg_proc.h
+++ b/src/include/catalog/pg_proc.h
@@ -212,6 +212,7 @@ DATA(insert OID = 65 ( int4eq PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0
DATA(insert OID = 66 ( int4lt PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "23 23" _null_ _null_ _null_ _null_ _null_ int4lt _null_ _null_ _null_ ));
DATA(insert OID = 67 ( texteq PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "25 25" _null_ _null_ _null_ _null_ _null_ texteq _null_ _null_ _null_ ));
DATA(insert OID = 68 ( xideq PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "28 28" _null_ _null_ _null_ _null_ _null_ xideq _null_ _null_ _null_ ));
+DATA(insert OID = 3308 ( xidneq PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "28 28" _null_ _null_ _null_ _null_ _null_ xidneq _null_ _null_ _null_ ));
DATA(insert OID = 69 ( cideq PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "29 29" _null_ _null_ _null_ _null_ _null_ cideq _null_ _null_ _null_ ));
DATA(insert OID = 70 ( charne PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "18 18" _null_ _null_ _null_ _null_ _null_ charne _null_ _null_ _null_ ));
DATA(insert OID = 1246 ( charlt PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "18 18" _null_ _null_ _null_ _null_ _null_ charlt _null_ _null_ _null_ ));
@@ -1515,6 +1516,7 @@ DATA(insert OID = 1318 ( length PGNSP PGUID 12 1 0 0 0 f f f f t f i s 1 0 2
DESCR("character length");
DATA(insert OID = 1319 ( xideqint4 PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "28 23" _null_ _null_ _null_ _null_ _null_ xideq _null_ _null_ _null_ ));
+DATA(insert OID = 3309 ( xidneqint4 PGNSP PGUID 12 1 0 0 0 f f f t t f i s 2 0 16 "28 23" _null_ _null_ _null_ _null_ _null_ xidneq _null_ _null_ _null_ ));
DATA(insert OID = 1326 ( interval_div PGNSP PGUID 12 1 0 0 0 f f f f t f i s 2 0 1186 "1186 701" _null_ _null_ _null_ _null_ _null_ interval_div _null_ _null_ _null_ ));
diff --git a/src/include/utils/builtins.h b/src/include/utils/builtins.h
index 130f5e23bcd48e8908bb1032e66333c6510d83a2..e610bf305d420e2f5c10629ea357c023e2659a73 100644
--- a/src/include/utils/builtins.h
+++ b/src/include/utils/builtins.h
@@ -860,6 +860,7 @@ extern Datum xidout(PG_FUNCTION_ARGS);
extern Datum xidrecv(PG_FUNCTION_ARGS);
extern Datum xidsend(PG_FUNCTION_ARGS);
extern Datum xideq(PG_FUNCTION_ARGS);
+extern Datum xidneq(PG_FUNCTION_ARGS);
extern Datum xid_age(PG_FUNCTION_ARGS);
extern Datum mxid_age(PG_FUNCTION_ARGS);
extern int xidComparator(const void *arg1, const void *arg2);
diff --git a/src/test/regress/expected/opr_sanity.out b/src/test/regress/expected/opr_sanity.out
index df29fe503ecd6e7a04d2a3a48bfbf150a698ad84..7c93b3b4ca5febaf87acccf59282a7c20338108a 100644
--- a/src/test/regress/expected/opr_sanity.out
+++ b/src/test/regress/expected/opr_sanity.out
@@ -641,6 +641,8 @@ uuid_eq(uuid,uuid)
uuid_ge(uuid,uuid)
uuid_gt(uuid,uuid)
uuid_ne(uuid,uuid)
+xidneq(xid,xid)
+xidneqint4(xid,integer)
-- restore normal output mode
\a\t
-- List of functions used by libpq's fe-lobj.c