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[PATCH 2/5] Add conditional lock feature to dshash
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* [PATCH 2/5] Add conditional lock feature to dshash
@ 2018-09-27 02:15  Kyotaro Horiguchi <[email protected]>
  0 siblings, 0 replies; 6+ messages in thread

From: Kyotaro Horiguchi @ 2018-09-27 02:15 UTC (permalink / raw)

Dshash currently waits for lock unconditionally. This commit adds new
interfaces for dshash_find and dshash_find_or_insert. The new
interfaces have an extra parameter "nowait" taht commands not to wait
for lock.
---
 src/backend/lib/dshash.c | 69 +++++++++++++++++++++++++++++++++++++++++++-----
 src/include/lib/dshash.h |  6 ++++-
 2 files changed, 67 insertions(+), 8 deletions(-)

diff --git a/src/backend/lib/dshash.c b/src/backend/lib/dshash.c
index d1908a6137..db8d6899af 100644
--- a/src/backend/lib/dshash.c
+++ b/src/backend/lib/dshash.c
@@ -394,19 +394,48 @@ dshash_get_hash_table_handle(dshash_table *hash_table)
  */
 void *
 dshash_find(dshash_table *hash_table, const void *key, bool exclusive)
+{
+	return dshash_find_extended(hash_table, key, exclusive, false, NULL);
+}
+
+/*
+ * Addition to dshash_find, returns immediately when nowait is true and lock
+ * was not acquired. Lock status is set to *lock_failed if any.
+ */
+void *
+dshash_find_extended(dshash_table *hash_table, const void *key,
+					 bool exclusive, bool nowait, bool *lock_acquired)
 {
 	dshash_hash hash;
 	size_t		partition;
 	dshash_table_item *item;
 
+	/* allowing !nowait returning the result is just not sensible */
+	Assert(nowait || !lock_acquired);
+
 	hash = hash_key(hash_table, key);
 	partition = PARTITION_FOR_HASH(hash);
 
 	Assert(hash_table->control->magic == DSHASH_MAGIC);
 	Assert(!hash_table->find_locked);
 
-	LWLockAcquire(PARTITION_LOCK(hash_table, partition),
-				  exclusive ? LW_EXCLUSIVE : LW_SHARED);
+	if (nowait)
+	{
+		if (!LWLockConditionalAcquire(PARTITION_LOCK(hash_table, partition),
+									  exclusive ? LW_EXCLUSIVE : LW_SHARED))
+		{
+			if (lock_acquired)
+				*lock_acquired = false;
+			return NULL;
+		}
+	}
+	else
+		LWLockAcquire(PARTITION_LOCK(hash_table, partition),
+					  exclusive ? LW_EXCLUSIVE : LW_SHARED);
+
+	if (lock_acquired)
+		*lock_acquired = true;
+
 	ensure_valid_bucket_pointers(hash_table);
 
 	/* Search the active bucket. */
@@ -441,6 +470,22 @@ void *
 dshash_find_or_insert(dshash_table *hash_table,
 					  const void *key,
 					  bool *found)
+{
+	return dshash_find_or_insert_extended(hash_table, key, found, false);
+}
+
+/*
+ * Addition to dshash_find_or_insert, returns NULL if nowait is true and lock
+ * was not acquired.
+ *
+ * Notes above dshash_find_extended() regarding locking and error handling
+ * equally apply here.
+ */
+void *
+dshash_find_or_insert_extended(dshash_table *hash_table,
+							   const void *key,
+							   bool *found,
+							   bool nowait)
 {
 	dshash_hash hash;
 	size_t		partition_index;
@@ -455,8 +500,16 @@ dshash_find_or_insert(dshash_table *hash_table,
 	Assert(!hash_table->find_locked);
 
 restart:
-	LWLockAcquire(PARTITION_LOCK(hash_table, partition_index),
-				  LW_EXCLUSIVE);
+	if (nowait)
+	{
+		if (!LWLockConditionalAcquire(
+				PARTITION_LOCK(hash_table, partition_index),
+				LW_EXCLUSIVE))
+			return NULL;
+	}
+	else
+		LWLockAcquire(PARTITION_LOCK(hash_table, partition_index),
+					  LW_EXCLUSIVE);
 	ensure_valid_bucket_pointers(hash_table);
 
 	/* Search the active bucket. */
@@ -626,9 +679,11 @@ dshash_memhash(const void *v, size_t size, void *arg)
  * As opposed to the equivalent for dynanash, the caller is not supposed to
  * delete the returned element before continuing the scan.
  *
- * If consistent is set for dshash_seq_init, the whole hash table is
- * non-exclusively locked. Otherwise a part of the hash table is locked in the
- * same mode (partition lock).
+ * If consistent is set for dshash_seq_init, the all hash table
+ * partitions are locked in the requested mode (as determined by the
+ * exclusive flag), and the locks are held until the end of the scan.
+ * Otherwise the partition locks are acquired and released as needed
+ * during the scan (up to two partitions may be locked at the same time).
  */
 void
 dshash_seq_init(dshash_seq_status *status, dshash_table *hash_table,
diff --git a/src/include/lib/dshash.h b/src/include/lib/dshash.h
index b80f3af995..fe1d4d75c5 100644
--- a/src/include/lib/dshash.h
+++ b/src/include/lib/dshash.h
@@ -90,8 +90,12 @@ extern void dshash_destroy(dshash_table *hash_table);
 /* Finding, creating, deleting entries. */
 extern void *dshash_find(dshash_table *hash_table,
 			const void *key, bool exclusive);
+extern void *dshash_find_extended(dshash_table *hash_table, const void *key,
+			bool exclusive, bool nowait, bool *lock_acquired);
 extern void *dshash_find_or_insert(dshash_table *hash_table,
-					  const void *key, bool *found);
+			const void *key, bool *found);
+extern void *dshash_find_or_insert_extended(dshash_table *hash_table,
+			const void *key, bool *found, bool nowait);
 extern bool dshash_delete_key(dshash_table *hash_table, const void *key);
 extern void dshash_delete_entry(dshash_table *hash_table, void *entry);
 extern void dshash_release_lock(dshash_table *hash_table, void *entry);
-- 
2.16.3


----Next_Part(Fri_Feb_15_17_29_00_2019_199)--
Content-Type: Text/X-Patch; charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="v13-0003-Make-archiver-process-an-auxiliary-process.patch"



^ permalink  raw  reply  [nested|flat] 6+ messages in thread

* [PATCH 6/7] Remove distance operators from btree_gist
@ 2018-11-30 11:56  Nikita Glukhov <[email protected]>
  0 siblings, 0 replies; 6+ messages in thread

From: Nikita Glukhov @ 2018-11-30 11:56 UTC (permalink / raw)

---
 contrib/btree_gist/Makefile                 |    5 +-
 contrib/btree_gist/btree_cash.c             |   20 -
 contrib/btree_gist/btree_date.c             |   13 -
 contrib/btree_gist/btree_float4.c           |   15 -
 contrib/btree_gist/btree_float8.c           |   15 -
 contrib/btree_gist/btree_gist--1.2.sql      | 1570 --------------------------
 contrib/btree_gist/btree_gist--1.5--1.6.sql |  150 +++
 contrib/btree_gist/btree_gist--1.6.sql      | 1615 +++++++++++++++++++++++++++
 contrib/btree_gist/btree_gist.control       |    2 +-
 contrib/btree_gist/btree_int2.c             |   20 -
 contrib/btree_gist/btree_int4.c             |   21 -
 contrib/btree_gist/btree_int8.c             |   21 -
 contrib/btree_gist/btree_interval.c         |   26 -
 contrib/btree_gist/btree_oid.c              |   16 -
 contrib/btree_gist/btree_time.c             |   12 -
 contrib/btree_gist/btree_ts.c               |   49 -
 contrib/btree_gist/btree_utils_num.h        |    2 -
 17 files changed, 1769 insertions(+), 1803 deletions(-)
 delete mode 100644 contrib/btree_gist/btree_gist--1.2.sql
 create mode 100644 contrib/btree_gist/btree_gist--1.5--1.6.sql
 create mode 100644 contrib/btree_gist/btree_gist--1.6.sql

diff --git a/contrib/btree_gist/Makefile b/contrib/btree_gist/Makefile
index af65120..46ab241 100644
--- a/contrib/btree_gist/Makefile
+++ b/contrib/btree_gist/Makefile
@@ -11,8 +11,9 @@ OBJS =  btree_gist.o btree_utils_num.o btree_utils_var.o btree_int2.o \
 
 EXTENSION = btree_gist
 DATA = btree_gist--unpackaged--1.0.sql btree_gist--1.0--1.1.sql \
-       btree_gist--1.1--1.2.sql btree_gist--1.2.sql btree_gist--1.2--1.3.sql \
-       btree_gist--1.3--1.4.sql btree_gist--1.4--1.5.sql
+       btree_gist--1.1--1.2.sql btree_gist--1.2--1.3.sql \
+       btree_gist--1.3--1.4.sql btree_gist--1.4--1.5.sql \
+       btree_gist--1.5--1.6.sql btree_gist--1.6.sql
 PGFILEDESC = "btree_gist - B-tree equivalent GiST operator classes"
 
 REGRESS = init int2 int4 int8 float4 float8 cash oid timestamp timestamptz \
diff --git a/contrib/btree_gist/btree_cash.c b/contrib/btree_gist/btree_cash.c
index 894d0a2..86e319d 100644
--- a/contrib/btree_gist/btree_cash.c
+++ b/contrib/btree_gist/btree_cash.c
@@ -91,26 +91,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(cash_dist);
-Datum
-cash_dist(PG_FUNCTION_ARGS)
-{
-	Cash		a = PG_GETARG_CASH(0);
-	Cash		b = PG_GETARG_CASH(1);
-	Cash		r;
-	Cash		ra;
-
-	if (pg_sub_s64_overflow(a, b, &r) ||
-		r == PG_INT64_MIN)
-		ereport(ERROR,
-				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
-				 errmsg("money out of range")));
-
-	ra = Abs(r);
-
-	PG_RETURN_CASH(ra);
-}
-
 /**************************************************
  * Cash ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_date.c b/contrib/btree_gist/btree_date.c
index 992ce57..05a4909 100644
--- a/contrib/btree_gist/btree_date.c
+++ b/contrib/btree_gist/btree_date.c
@@ -109,19 +109,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(date_dist);
-Datum
-date_dist(PG_FUNCTION_ARGS)
-{
-	/* we assume the difference can't overflow */
-	Datum		diff = DirectFunctionCall2(date_mi,
-										   PG_GETARG_DATUM(0),
-										   PG_GETARG_DATUM(1));
-
-	PG_RETURN_INT32(Abs(DatumGetInt32(diff)));
-}
-
-
 /**************************************************
  * date ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_float4.c b/contrib/btree_gist/btree_float4.c
index 6b20f44..26fa79b 100644
--- a/contrib/btree_gist/btree_float4.c
+++ b/contrib/btree_gist/btree_float4.c
@@ -89,21 +89,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(float4_dist);
-Datum
-float4_dist(PG_FUNCTION_ARGS)
-{
-	float4		a = PG_GETARG_FLOAT4(0);
-	float4		b = PG_GETARG_FLOAT4(1);
-	float4		r;
-
-	r = a - b;
-	CHECKFLOATVAL(r, isinf(a) || isinf(b), true);
-
-	PG_RETURN_FLOAT4(Abs(r));
-}
-
-
 /**************************************************
  * float4 ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_float8.c b/contrib/btree_gist/btree_float8.c
index ee114cb..63e5597 100644
--- a/contrib/btree_gist/btree_float8.c
+++ b/contrib/btree_gist/btree_float8.c
@@ -96,21 +96,6 @@ static const gbtree_ninfo tinfo =
 	gbt_float8_dist
 };
 
-
-PG_FUNCTION_INFO_V1(float8_dist);
-Datum
-float8_dist(PG_FUNCTION_ARGS)
-{
-	float8		a = PG_GETARG_FLOAT8(0);
-	float8		b = PG_GETARG_FLOAT8(1);
-	float8		r;
-
-	r = a - b;
-	CHECKFLOATVAL(r, isinf(a) || isinf(b), true);
-
-	PG_RETURN_FLOAT8(Abs(r));
-}
-
 /**************************************************
  * float8 ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_gist--1.2.sql b/contrib/btree_gist/btree_gist--1.2.sql
deleted file mode 100644
index 1efe753..0000000
--- a/contrib/btree_gist/btree_gist--1.2.sql
+++ /dev/null
@@ -1,1570 +0,0 @@
-/* contrib/btree_gist/btree_gist--1.2.sql */
-
--- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION btree_gist" to load this file. \quit
-
-CREATE FUNCTION gbtreekey4_in(cstring)
-RETURNS gbtreekey4
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey4_out(gbtreekey4)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey4 (
-	INTERNALLENGTH = 4,
-	INPUT  = gbtreekey4_in,
-	OUTPUT = gbtreekey4_out
-);
-
-CREATE FUNCTION gbtreekey8_in(cstring)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey8_out(gbtreekey8)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey8 (
-	INTERNALLENGTH = 8,
-	INPUT  = gbtreekey8_in,
-	OUTPUT = gbtreekey8_out
-);
-
-CREATE FUNCTION gbtreekey16_in(cstring)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey16_out(gbtreekey16)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey16 (
-	INTERNALLENGTH = 16,
-	INPUT  = gbtreekey16_in,
-	OUTPUT = gbtreekey16_out
-);
-
-CREATE FUNCTION gbtreekey32_in(cstring)
-RETURNS gbtreekey32
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey32_out(gbtreekey32)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey32 (
-	INTERNALLENGTH = 32,
-	INPUT  = gbtreekey32_in,
-	OUTPUT = gbtreekey32_out
-);
-
-CREATE FUNCTION gbtreekey_var_in(cstring)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey_var_out(gbtreekey_var)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey_var (
-	INTERNALLENGTH = VARIABLE,
-	INPUT  = gbtreekey_var_in,
-	OUTPUT = gbtreekey_var_out,
-	STORAGE = EXTENDED
-);
-
---distance operators
-
-CREATE FUNCTION cash_dist(money, money)
-RETURNS money
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = money,
-	RIGHTARG = money,
-	PROCEDURE = cash_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION date_dist(date, date)
-RETURNS int4
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = date,
-	RIGHTARG = date,
-	PROCEDURE = date_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION float4_dist(float4, float4)
-RETURNS float4
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = float4,
-	RIGHTARG = float4,
-	PROCEDURE = float4_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION float8_dist(float8, float8)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = float8,
-	RIGHTARG = float8,
-	PROCEDURE = float8_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION int2_dist(int2, int2)
-RETURNS int2
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = int2,
-	RIGHTARG = int2,
-	PROCEDURE = int2_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION int4_dist(int4, int4)
-RETURNS int4
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = int4,
-	RIGHTARG = int4,
-	PROCEDURE = int4_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION int8_dist(int8, int8)
-RETURNS int8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = int8,
-	RIGHTARG = int8,
-	PROCEDURE = int8_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION interval_dist(interval, interval)
-RETURNS interval
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = interval,
-	RIGHTARG = interval,
-	PROCEDURE = interval_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION oid_dist(oid, oid)
-RETURNS oid
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = oid,
-	RIGHTARG = oid,
-	PROCEDURE = oid_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION time_dist(time, time)
-RETURNS interval
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = time,
-	RIGHTARG = time,
-	PROCEDURE = time_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION ts_dist(timestamp, timestamp)
-RETURNS interval
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = timestamp,
-	RIGHTARG = timestamp,
-	PROCEDURE = ts_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION tstz_dist(timestamptz, timestamptz)
-RETURNS interval
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = timestamptz,
-	RIGHTARG = timestamptz,
-	PROCEDURE = tstz_dist,
-	COMMUTATOR = '<->'
-);
-
-
---
---
---
--- oid ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_oid_consistent(internal,oid,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_distance(internal,oid,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_decompress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_var_decompress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_var_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_union(internal, internal)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_same(gbtreekey8, gbtreekey8, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_oid_ops
-DEFAULT FOR TYPE oid USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_oid_consistent (internal, oid, int2, oid, internal),
-	FUNCTION	2	gbt_oid_union (internal, internal),
-	FUNCTION	3	gbt_oid_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_oid_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_oid_picksplit (internal, internal),
-	FUNCTION	7	gbt_oid_same (gbtreekey8, gbtreekey8, internal),
-	STORAGE		gbtreekey8;
-
--- Add operators that are new in 9.1.  We do it like this, leaving them
--- "loose" in the operator family rather than bound into the opclass, because
--- that's the only state that can be reproduced during an upgrade from 9.0.
-ALTER OPERATOR FAMILY gist_oid_ops USING gist ADD
-	OPERATOR	6	<> (oid, oid) ,
-	OPERATOR	15	<-> (oid, oid) FOR ORDER BY pg_catalog.oid_ops ,
-	FUNCTION	8 (oid, oid) gbt_oid_distance (internal, oid, int2, oid, internal) ,
-	-- Also add support function for index-only-scans, added in 9.5.
-	FUNCTION	9 (oid, oid) gbt_oid_fetch (internal) ;
-
-
---
---
---
--- int2 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_int2_consistent(internal,int2,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_distance(internal,int2,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_union(internal, internal)
-RETURNS gbtreekey4
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_same(gbtreekey4, gbtreekey4, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_int2_ops
-DEFAULT FOR TYPE int2 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_int2_consistent (internal, int2, int2, oid, internal),
-	FUNCTION	2	gbt_int2_union (internal, internal),
-	FUNCTION	3	gbt_int2_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_int2_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_int2_picksplit (internal, internal),
-	FUNCTION	7	gbt_int2_same (gbtreekey4, gbtreekey4, internal),
-	STORAGE		gbtreekey4;
-
-ALTER OPERATOR FAMILY gist_int2_ops USING gist ADD
-	OPERATOR	6	<> (int2, int2) ,
-	OPERATOR	15	<-> (int2, int2) FOR ORDER BY pg_catalog.integer_ops ,
-	FUNCTION	8 (int2, int2) gbt_int2_distance (internal, int2, int2, oid, internal) ,
-	FUNCTION	9 (int2, int2) gbt_int2_fetch (internal) ;
-
---
---
---
--- int4 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_int4_consistent(internal,int4,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_distance(internal,int4,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_union(internal, internal)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_same(gbtreekey8, gbtreekey8, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_int4_ops
-DEFAULT FOR TYPE int4 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_int4_consistent (internal, int4, int2, oid, internal),
-	FUNCTION	2	gbt_int4_union (internal, internal),
-	FUNCTION	3	gbt_int4_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_int4_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_int4_picksplit (internal, internal),
-	FUNCTION	7	gbt_int4_same (gbtreekey8, gbtreekey8, internal),
-	STORAGE		gbtreekey8;
-
-ALTER OPERATOR FAMILY gist_int4_ops USING gist ADD
-	OPERATOR	6	<> (int4, int4) ,
-	OPERATOR	15	<-> (int4, int4) FOR ORDER BY pg_catalog.integer_ops ,
-	FUNCTION	8 (int4, int4) gbt_int4_distance (internal, int4, int2, oid, internal) ,
-	FUNCTION	9 (int4, int4) gbt_int4_fetch (internal) ;
-
-
---
---
---
--- int8 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_int8_consistent(internal,int8,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_distance(internal,int8,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_int8_ops
-DEFAULT FOR TYPE int8 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_int8_consistent (internal, int8, int2, oid, internal),
-	FUNCTION	2	gbt_int8_union (internal, internal),
-	FUNCTION	3	gbt_int8_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_int8_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_int8_picksplit (internal, internal),
-	FUNCTION	7	gbt_int8_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_int8_ops USING gist ADD
-	OPERATOR	6	<> (int8, int8) ,
-	OPERATOR	15	<-> (int8, int8) FOR ORDER BY pg_catalog.integer_ops ,
-	FUNCTION	8 (int8, int8) gbt_int8_distance (internal, int8, int2, oid, internal) ,
-	FUNCTION	9 (int8, int8) gbt_int8_fetch (internal) ;
-
---
---
---
--- float4 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_float4_consistent(internal,float4,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_distance(internal,float4,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_union(internal, internal)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_same(gbtreekey8, gbtreekey8, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_float4_ops
-DEFAULT FOR TYPE float4 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_float4_consistent (internal, float4, int2, oid, internal),
-	FUNCTION	2	gbt_float4_union (internal, internal),
-	FUNCTION	3	gbt_float4_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_float4_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_float4_picksplit (internal, internal),
-	FUNCTION	7	gbt_float4_same (gbtreekey8, gbtreekey8, internal),
-	STORAGE		gbtreekey8;
-
-ALTER OPERATOR FAMILY gist_float4_ops USING gist ADD
-	OPERATOR	6	<> (float4, float4) ,
-	OPERATOR	15	<-> (float4, float4) FOR ORDER BY pg_catalog.float_ops ,
-	FUNCTION	8 (float4, float4) gbt_float4_distance (internal, float4, int2, oid, internal) ,
-	FUNCTION	9 (float4, float4) gbt_float4_fetch (internal) ;
-
---
---
---
--- float8 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_float8_consistent(internal,float8,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_distance(internal,float8,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_float8_ops
-DEFAULT FOR TYPE float8 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_float8_consistent (internal, float8, int2, oid, internal),
-	FUNCTION	2	gbt_float8_union (internal, internal),
-	FUNCTION	3	gbt_float8_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_float8_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_float8_picksplit (internal, internal),
-	FUNCTION	7	gbt_float8_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_float8_ops USING gist ADD
-	OPERATOR	6	<> (float8, float8) ,
-	OPERATOR	15	<-> (float8, float8) FOR ORDER BY pg_catalog.float_ops ,
-	FUNCTION	8 (float8, float8) gbt_float8_distance (internal, float8, int2, oid, internal) ,
-	FUNCTION	9 (float8, float8) gbt_float8_fetch (internal) ;
-
---
---
---
--- timestamp ops
---
---
---
-
-CREATE FUNCTION gbt_ts_consistent(internal,timestamp,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_distance(internal,timestamp,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_tstz_consistent(internal,timestamptz,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_tstz_distance(internal,timestamptz,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_tstz_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_timestamp_ops
-DEFAULT FOR TYPE timestamp USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_ts_consistent (internal, timestamp, int2, oid, internal),
-	FUNCTION	2	gbt_ts_union (internal, internal),
-	FUNCTION	3	gbt_ts_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_ts_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_ts_picksplit (internal, internal),
-	FUNCTION	7	gbt_ts_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_timestamp_ops USING gist ADD
-	OPERATOR	6	<> (timestamp, timestamp) ,
-	OPERATOR	15	<-> (timestamp, timestamp) FOR ORDER BY pg_catalog.interval_ops ,
-	FUNCTION	8 (timestamp, timestamp) gbt_ts_distance (internal, timestamp, int2, oid, internal) ,
-	FUNCTION	9 (timestamp, timestamp) gbt_ts_fetch (internal) ;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_timestamptz_ops
-DEFAULT FOR TYPE timestamptz USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_tstz_consistent (internal, timestamptz, int2, oid, internal),
-	FUNCTION	2	gbt_ts_union (internal, internal),
-	FUNCTION	3	gbt_tstz_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_ts_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_ts_picksplit (internal, internal),
-	FUNCTION	7	gbt_ts_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_timestamptz_ops USING gist ADD
-	OPERATOR	6	<> (timestamptz, timestamptz) ,
-	OPERATOR	15	<-> (timestamptz, timestamptz) FOR ORDER BY pg_catalog.interval_ops ,
-	FUNCTION	8 (timestamptz, timestamptz) gbt_tstz_distance (internal, timestamptz, int2, oid, internal) ,
-	FUNCTION	9 (timestamptz, timestamptz) gbt_ts_fetch (internal) ;
-
---
---
---
--- time ops
---
---
---
-
-CREATE FUNCTION gbt_time_consistent(internal,time,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_distance(internal,time,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_timetz_consistent(internal,timetz,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_timetz_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_time_ops
-DEFAULT FOR TYPE time USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_time_consistent (internal, time, int2, oid, internal),
-	FUNCTION	2	gbt_time_union (internal, internal),
-	FUNCTION	3	gbt_time_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_time_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_time_picksplit (internal, internal),
-	FUNCTION	7	gbt_time_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_time_ops USING gist ADD
-	OPERATOR	6	<> (time, time) ,
-	OPERATOR	15	<-> (time, time) FOR ORDER BY pg_catalog.interval_ops ,
-	FUNCTION	8 (time, time) gbt_time_distance (internal, time, int2, oid, internal) ,
-	FUNCTION	9 (time, time) gbt_time_fetch (internal) ;
-
-
-CREATE OPERATOR CLASS gist_timetz_ops
-DEFAULT FOR TYPE timetz USING gist
-AS
-	OPERATOR	1	<   ,
-	OPERATOR	2	<=  ,
-	OPERATOR	3	=   ,
-	OPERATOR	4	>=  ,
-	OPERATOR	5	>   ,
-	FUNCTION	1	gbt_timetz_consistent (internal, timetz, int2, oid, internal),
-	FUNCTION	2	gbt_time_union (internal, internal),
-	FUNCTION	3	gbt_timetz_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_time_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_time_picksplit (internal, internal),
-	FUNCTION	7	gbt_time_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_timetz_ops USING gist ADD
-	OPERATOR	6	<> (timetz, timetz) ;
-	-- no 'fetch' function, as the compress function is lossy.
-
-
---
---
---
--- date ops
---
---
---
-
-CREATE FUNCTION gbt_date_consistent(internal,date,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_distance(internal,date,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_union(internal, internal)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_same(gbtreekey8, gbtreekey8, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_date_ops
-DEFAULT FOR TYPE date USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_date_consistent (internal, date, int2, oid, internal),
-	FUNCTION	2	gbt_date_union (internal, internal),
-	FUNCTION	3	gbt_date_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_date_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_date_picksplit (internal, internal),
-	FUNCTION	7	gbt_date_same (gbtreekey8, gbtreekey8, internal),
-	STORAGE		gbtreekey8;
-
-ALTER OPERATOR FAMILY gist_date_ops USING gist ADD
-	OPERATOR	6	<> (date, date) ,
-	OPERATOR	15	<-> (date, date) FOR ORDER BY pg_catalog.integer_ops ,
-	FUNCTION	8 (date, date) gbt_date_distance (internal, date, int2, oid, internal) ,
-	FUNCTION	9 (date, date) gbt_date_fetch (internal) ;
-
-
---
---
---
--- interval ops
---
---
---
-
-CREATE FUNCTION gbt_intv_consistent(internal,interval,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_distance(internal,interval,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_decompress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_union(internal, internal)
-RETURNS gbtreekey32
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_same(gbtreekey32, gbtreekey32, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_interval_ops
-DEFAULT FOR TYPE interval USING gist
-AS
-	OPERATOR	1	< ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	= ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	> ,
-	FUNCTION	1	gbt_intv_consistent (internal, interval, int2, oid, internal),
-	FUNCTION	2	gbt_intv_union (internal, internal),
-	FUNCTION	3	gbt_intv_compress (internal),
-	FUNCTION	4	gbt_intv_decompress (internal),
-	FUNCTION	5	gbt_intv_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_intv_picksplit (internal, internal),
-	FUNCTION	7	gbt_intv_same (gbtreekey32, gbtreekey32, internal),
-	STORAGE		gbtreekey32;
-
-ALTER OPERATOR FAMILY gist_interval_ops USING gist ADD
-	OPERATOR	6	<> (interval, interval) ,
-	OPERATOR	15	<-> (interval, interval) FOR ORDER BY pg_catalog.interval_ops ,
-	FUNCTION	8 (interval, interval) gbt_intv_distance (internal, interval, int2, oid, internal) ,
-	FUNCTION	9 (interval, interval) gbt_intv_fetch (internal) ;
-
-
---
---
---
--- cash ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_cash_consistent(internal,money,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_distance(internal,money,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_cash_ops
-DEFAULT FOR TYPE money USING gist
-AS
-	OPERATOR	1	< ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	= ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	> ,
-	FUNCTION	1	gbt_cash_consistent (internal, money, int2, oid, internal),
-	FUNCTION	2	gbt_cash_union (internal, internal),
-	FUNCTION	3	gbt_cash_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_cash_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_cash_picksplit (internal, internal),
-	FUNCTION	7	gbt_cash_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_cash_ops USING gist ADD
-	OPERATOR	6	<> (money, money) ,
-	OPERATOR	15	<-> (money, money) FOR ORDER BY pg_catalog.money_ops ,
-	FUNCTION	8 (money, money) gbt_cash_distance (internal, money, int2, oid, internal) ,
-	FUNCTION	9 (money, money) gbt_cash_fetch (internal) ;
-
-
---
---
---
--- macaddr ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_macad_consistent(internal,macaddr,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_macaddr_ops
-DEFAULT FOR TYPE macaddr USING gist
-AS
-	OPERATOR	1	< ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	= ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	> ,
-	FUNCTION	1	gbt_macad_consistent (internal, macaddr, int2, oid, internal),
-	FUNCTION	2	gbt_macad_union (internal, internal),
-	FUNCTION	3	gbt_macad_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_macad_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_macad_picksplit (internal, internal),
-	FUNCTION	7	gbt_macad_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_macaddr_ops USING gist ADD
-	OPERATOR	6	<> (macaddr, macaddr) ,
-	FUNCTION	9 (macaddr, macaddr) gbt_macad_fetch (internal);
-
-
---
---
---
--- text/ bpchar ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_text_consistent(internal,text,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bpchar_consistent(internal,bpchar,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bpchar_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_union(internal, internal)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_same(gbtreekey_var, gbtreekey_var, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_text_ops
-DEFAULT FOR TYPE text USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_text_consistent (internal, text, int2, oid, internal),
-	FUNCTION	2	gbt_text_union (internal, internal),
-	FUNCTION	3	gbt_text_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_text_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_text_picksplit (internal, internal),
-	FUNCTION	7	gbt_text_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_text_ops USING gist ADD
-	OPERATOR	6	<> (text, text) ,
-	FUNCTION	9 (text, text) gbt_var_fetch (internal) ;
-
-
----- Create the operator class
-CREATE OPERATOR CLASS gist_bpchar_ops
-DEFAULT FOR TYPE bpchar USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_bpchar_consistent (internal, bpchar , int2, oid, internal),
-	FUNCTION	2	gbt_text_union (internal, internal),
-	FUNCTION	3	gbt_bpchar_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_text_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_text_picksplit (internal, internal),
-	FUNCTION	7	gbt_text_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_bpchar_ops USING gist ADD
-	OPERATOR	6	<> (bpchar, bpchar) ,
-	FUNCTION	9 (bpchar, bpchar) gbt_var_fetch (internal) ;
-
---
---
--- bytea ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_bytea_consistent(internal,bytea,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_union(internal, internal)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_same(gbtreekey_var, gbtreekey_var, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_bytea_ops
-DEFAULT FOR TYPE bytea USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_bytea_consistent (internal, bytea, int2, oid, internal),
-	FUNCTION	2	gbt_bytea_union (internal, internal),
-	FUNCTION	3	gbt_bytea_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_bytea_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_bytea_picksplit (internal, internal),
-	FUNCTION	7	gbt_bytea_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_bytea_ops USING gist ADD
-	OPERATOR	6	<> (bytea, bytea) ,
-	FUNCTION	9 (bytea, bytea) gbt_var_fetch (internal) ;
-
-
---
---
---
--- numeric ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_numeric_consistent(internal,numeric,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_union(internal, internal)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_same(gbtreekey_var, gbtreekey_var, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_numeric_ops
-DEFAULT FOR TYPE numeric USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_numeric_consistent (internal, numeric, int2, oid, internal),
-	FUNCTION	2	gbt_numeric_union (internal, internal),
-	FUNCTION	3	gbt_numeric_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_numeric_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_numeric_picksplit (internal, internal),
-	FUNCTION	7	gbt_numeric_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_numeric_ops USING gist ADD
-	OPERATOR	6	<> (numeric, numeric) ,
-	FUNCTION	9 (numeric, numeric) gbt_var_fetch (internal) ;
-
-
---
---
--- bit ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_bit_consistent(internal,bit,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_union(internal, internal)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_same(gbtreekey_var, gbtreekey_var, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_bit_ops
-DEFAULT FOR TYPE bit USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_bit_consistent (internal, bit, int2, oid, internal),
-	FUNCTION	2	gbt_bit_union (internal, internal),
-	FUNCTION	3	gbt_bit_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_bit_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_bit_picksplit (internal, internal),
-	FUNCTION	7	gbt_bit_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_bit_ops USING gist ADD
-	OPERATOR	6	<> (bit, bit) ,
-	FUNCTION	9 (bit, bit) gbt_var_fetch (internal) ;
-
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_vbit_ops
-DEFAULT FOR TYPE varbit USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_bit_consistent (internal, bit, int2, oid, internal),
-	FUNCTION	2	gbt_bit_union (internal, internal),
-	FUNCTION	3	gbt_bit_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_bit_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_bit_picksplit (internal, internal),
-	FUNCTION	7	gbt_bit_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_vbit_ops USING gist ADD
-	OPERATOR	6	<> (varbit, varbit) ,
-	FUNCTION	9 (varbit, varbit) gbt_var_fetch (internal) ;
-
-
---
---
---
--- inet/cidr ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_inet_consistent(internal,inet,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_inet_ops
-DEFAULT FOR TYPE inet USING gist
-AS
-	OPERATOR	1	<   ,
-	OPERATOR	2	<=  ,
-	OPERATOR	3	=   ,
-	OPERATOR	4	>=  ,
-	OPERATOR	5	>   ,
-	FUNCTION	1	gbt_inet_consistent (internal, inet, int2, oid, internal),
-	FUNCTION	2	gbt_inet_union (internal, internal),
-	FUNCTION	3	gbt_inet_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_inet_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_inet_picksplit (internal, internal),
-	FUNCTION	7	gbt_inet_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_inet_ops USING gist ADD
-	OPERATOR	6	<>  (inet, inet) ;
-	-- no fetch support, the compress function is lossy
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_cidr_ops
-DEFAULT FOR TYPE cidr USING gist
-AS
-	OPERATOR	1	<  (inet, inet)  ,
-	OPERATOR	2	<= (inet, inet)  ,
-	OPERATOR	3	=  (inet, inet)  ,
-	OPERATOR	4	>= (inet, inet)  ,
-	OPERATOR	5	>  (inet, inet)  ,
-	FUNCTION	1	gbt_inet_consistent (internal, inet, int2, oid, internal),
-	FUNCTION	2	gbt_inet_union (internal, internal),
-	FUNCTION	3	gbt_inet_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_inet_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_inet_picksplit (internal, internal),
-	FUNCTION	7	gbt_inet_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_cidr_ops USING gist ADD
-	OPERATOR	6	<> (inet, inet) ;
-	-- no fetch support, the compress function is lossy
diff --git a/contrib/btree_gist/btree_gist--1.5--1.6.sql b/contrib/btree_gist/btree_gist--1.5--1.6.sql
new file mode 100644
index 0000000..fcd10f5
--- /dev/null
+++ b/contrib/btree_gist/btree_gist--1.5--1.6.sql
@@ -0,0 +1,150 @@
+/* contrib/btree_gist/btree_gist--1.5--1.6.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION btree_gist UPDATE TO '1.6'" to load this file. \quit
+
+-- update references to distance operators in pg_amop and pg_depend
+
+WITH
+btree_ops AS (
+	SELECT
+		amoplefttype, amoprighttype, amopopr
+	FROM
+		pg_amop
+		JOIN pg_am ON pg_am.oid = amopmethod
+		JOIN pg_opfamily ON pg_opfamily.oid = amopfamily
+		JOIN pg_namespace ON pg_namespace.oid = opfnamespace
+	WHERE
+		nspname = 'pg_catalog'
+		AND opfname IN (
+			'integer_ops',
+			'oid_ops',
+			'money_ops',
+			'float_ops',
+			'datetime_ops',
+			'time_ops',
+			'interval_ops'
+		)
+		AND amname = 'btree'
+		AND amoppurpose = 'o'
+		AND amopstrategy = 6
+	),
+gist_ops AS (
+	SELECT
+		pg_amop.oid AS oid, amoplefttype, amoprighttype, amopopr
+	FROM
+		pg_amop
+		JOIN pg_am ON amopmethod = pg_am.oid
+		JOIN pg_opfamily ON amopfamily = pg_opfamily.oid
+		JOIN pg_namespace ON pg_namespace.oid = opfnamespace
+	WHERE
+		nspname = current_schema()
+		AND opfname IN (
+			'gist_oid_ops',
+			'gist_int2_ops',
+			'gist_int4_ops',
+			'gist_int8_ops',
+			'gist_float4_ops',
+			'gist_float8_ops',
+			'gist_timestamp_ops',
+			'gist_timestamptz_ops',
+			'gist_time_ops',
+			'gist_date_ops',
+			'gist_interval_ops',
+			'gist_cash_ops'
+		)
+		AND amname = 'gist'
+		AND amoppurpose = 'o'
+		AND amopstrategy = 15
+	),
+depend_update_data(gist_amop, gist_amopopr, btree_amopopr) AS (
+	SELECT
+		gist_ops.oid, gist_ops.amopopr, btree_ops.amopopr
+	FROM
+		btree_ops JOIN gist_ops USING (amoplefttype, amoprighttype)
+),
+amop_update_data AS (
+	UPDATE
+		pg_depend
+	SET
+		refobjid = btree_amopopr
+	FROM
+		depend_update_data
+	WHERE
+		objid = gist_amop AND refobjid = gist_amopopr
+	RETURNING
+		depend_update_data.*
+)
+UPDATE
+	pg_amop
+SET
+	amopopr = btree_amopopr
+FROM
+	amop_update_data
+WHERE
+	pg_amop.oid = gist_amop;
+
+-- disable implicit pg_catalog search
+
+DO
+$$
+BEGIN
+	EXECUTE 'SET LOCAL search_path TO ' || current_schema() || ', pg_catalog';
+END
+$$;
+
+-- drop distance operators
+
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (int2, int2);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (int4, int4);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (int8, int8);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (float4, float4);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (float8, float8);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (oid, oid);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (money, money);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (date, date);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (time, time);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (timestamp, timestamp);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (timestamptz, timestamptz);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (interval, interval);
+
+DROP OPERATOR <-> (int2, int2);
+DROP OPERATOR <-> (int4, int4);
+DROP OPERATOR <-> (int8, int8);
+DROP OPERATOR <-> (float4, float4);
+DROP OPERATOR <-> (float8, float8);
+DROP OPERATOR <-> (oid, oid);
+DROP OPERATOR <-> (money, money);
+DROP OPERATOR <-> (date, date);
+DROP OPERATOR <-> (time, time);
+DROP OPERATOR <-> (timestamp, timestamp);
+DROP OPERATOR <-> (timestamptz, timestamptz);
+DROP OPERATOR <-> (interval, interval);
+
+-- drop distance functions
+
+ALTER EXTENSION btree_gist DROP FUNCTION int2_dist(int2, int2);
+ALTER EXTENSION btree_gist DROP FUNCTION int4_dist(int4, int4);
+ALTER EXTENSION btree_gist DROP FUNCTION int8_dist(int8, int8);
+ALTER EXTENSION btree_gist DROP FUNCTION float4_dist(float4, float4);
+ALTER EXTENSION btree_gist DROP FUNCTION float8_dist(float8, float8);
+ALTER EXTENSION btree_gist DROP FUNCTION oid_dist(oid, oid);
+ALTER EXTENSION btree_gist DROP FUNCTION cash_dist(money, money);
+ALTER EXTENSION btree_gist DROP FUNCTION date_dist(date, date);
+ALTER EXTENSION btree_gist DROP FUNCTION time_dist(time, time);
+ALTER EXTENSION btree_gist DROP FUNCTION ts_dist(timestamp, timestamp);
+ALTER EXTENSION btree_gist DROP FUNCTION tstz_dist(timestamptz, timestamptz);
+ALTER EXTENSION btree_gist DROP FUNCTION interval_dist(interval, interval);
+
+DROP FUNCTION int2_dist(int2, int2);
+DROP FUNCTION int4_dist(int4, int4);
+DROP FUNCTION int8_dist(int8, int8);
+DROP FUNCTION float4_dist(float4, float4);
+DROP FUNCTION float8_dist(float8, float8);
+DROP FUNCTION oid_dist(oid, oid);
+DROP FUNCTION cash_dist(money, money);
+DROP FUNCTION date_dist(date, date);
+DROP FUNCTION time_dist(time, time);
+DROP FUNCTION ts_dist(timestamp, timestamp);
+DROP FUNCTION tstz_dist(timestamptz, timestamptz);
+DROP FUNCTION interval_dist(interval, interval);
diff --git a/contrib/btree_gist/btree_gist--1.6.sql b/contrib/btree_gist/btree_gist--1.6.sql
new file mode 100644
index 0000000..8ff8eb5
--- /dev/null
+++ b/contrib/btree_gist/btree_gist--1.6.sql
@@ -0,0 +1,1615 @@
+/* contrib/btree_gist/btree_gist--1.2.sql */
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION btree_gist" to load this file. \quit
+
+CREATE FUNCTION gbtreekey4_in(cstring)
+RETURNS gbtreekey4
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey4_out(gbtreekey4)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey4 (
+	INTERNALLENGTH = 4,
+	INPUT  = gbtreekey4_in,
+	OUTPUT = gbtreekey4_out
+);
+
+CREATE FUNCTION gbtreekey8_in(cstring)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey8_out(gbtreekey8)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey8 (
+	INTERNALLENGTH = 8,
+	INPUT  = gbtreekey8_in,
+	OUTPUT = gbtreekey8_out
+);
+
+CREATE FUNCTION gbtreekey16_in(cstring)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey16_out(gbtreekey16)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey16 (
+	INTERNALLENGTH = 16,
+	INPUT  = gbtreekey16_in,
+	OUTPUT = gbtreekey16_out
+);
+
+CREATE FUNCTION gbtreekey32_in(cstring)
+RETURNS gbtreekey32
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey32_out(gbtreekey32)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey32 (
+	INTERNALLENGTH = 32,
+	INPUT  = gbtreekey32_in,
+	OUTPUT = gbtreekey32_out
+);
+
+CREATE FUNCTION gbtreekey_var_in(cstring)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey_var_out(gbtreekey_var)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey_var (
+	INTERNALLENGTH = VARIABLE,
+	INPUT  = gbtreekey_var_in,
+	OUTPUT = gbtreekey_var_out,
+	STORAGE = EXTENDED
+);
+
+
+--
+--
+--
+-- oid ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_oid_consistent(internal,oid,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_distance(internal,oid,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_decompress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_var_decompress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_var_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_oid_ops
+DEFAULT FOR TYPE oid USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_oid_consistent (internal, oid, int2, oid, internal),
+	FUNCTION	2	gbt_oid_union (internal, internal),
+	FUNCTION	3	gbt_oid_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_oid_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_oid_picksplit (internal, internal),
+	FUNCTION	7	gbt_oid_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+-- Add operators that are new in 9.1.  We do it like this, leaving them
+-- "loose" in the operator family rather than bound into the opclass, because
+-- that's the only state that can be reproduced during an upgrade from 9.0.
+ALTER OPERATOR FAMILY gist_oid_ops USING gist ADD
+	OPERATOR	6	<> (oid, oid) ,
+	OPERATOR	15	<-> (oid, oid) FOR ORDER BY pg_catalog.oid_ops ,
+	FUNCTION	8 (oid, oid) gbt_oid_distance (internal, oid, int2, oid, internal) ,
+	-- Also add support function for index-only-scans, added in 9.5.
+	FUNCTION	9 (oid, oid) gbt_oid_fetch (internal) ;
+
+
+--
+--
+--
+-- int2 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_int2_consistent(internal,int2,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_distance(internal,int2,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_union(internal, internal)
+RETURNS gbtreekey4
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_same(gbtreekey4, gbtreekey4, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_int2_ops
+DEFAULT FOR TYPE int2 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_int2_consistent (internal, int2, int2, oid, internal),
+	FUNCTION	2	gbt_int2_union (internal, internal),
+	FUNCTION	3	gbt_int2_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_int2_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_int2_picksplit (internal, internal),
+	FUNCTION	7	gbt_int2_same (gbtreekey4, gbtreekey4, internal),
+	STORAGE		gbtreekey4;
+
+ALTER OPERATOR FAMILY gist_int2_ops USING gist ADD
+	OPERATOR	6	<> (int2, int2) ,
+	OPERATOR	15	<-> (int2, int2) FOR ORDER BY pg_catalog.integer_ops ,
+	FUNCTION	8 (int2, int2) gbt_int2_distance (internal, int2, int2, oid, internal) ,
+	FUNCTION	9 (int2, int2) gbt_int2_fetch (internal) ;
+
+--
+--
+--
+-- int4 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_int4_consistent(internal,int4,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_distance(internal,int4,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_int4_ops
+DEFAULT FOR TYPE int4 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_int4_consistent (internal, int4, int2, oid, internal),
+	FUNCTION	2	gbt_int4_union (internal, internal),
+	FUNCTION	3	gbt_int4_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_int4_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_int4_picksplit (internal, internal),
+	FUNCTION	7	gbt_int4_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+ALTER OPERATOR FAMILY gist_int4_ops USING gist ADD
+	OPERATOR	6	<> (int4, int4) ,
+	OPERATOR	15	<-> (int4, int4) FOR ORDER BY pg_catalog.integer_ops ,
+	FUNCTION	8 (int4, int4) gbt_int4_distance (internal, int4, int2, oid, internal) ,
+	FUNCTION	9 (int4, int4) gbt_int4_fetch (internal) ;
+
+
+--
+--
+--
+-- int8 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_int8_consistent(internal,int8,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_distance(internal,int8,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_int8_ops
+DEFAULT FOR TYPE int8 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_int8_consistent (internal, int8, int2, oid, internal),
+	FUNCTION	2	gbt_int8_union (internal, internal),
+	FUNCTION	3	gbt_int8_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_int8_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_int8_picksplit (internal, internal),
+	FUNCTION	7	gbt_int8_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_int8_ops USING gist ADD
+	OPERATOR	6	<> (int8, int8) ,
+	OPERATOR	15	<-> (int8, int8) FOR ORDER BY pg_catalog.integer_ops ,
+	FUNCTION	8 (int8, int8) gbt_int8_distance (internal, int8, int2, oid, internal) ,
+	FUNCTION	9 (int8, int8) gbt_int8_fetch (internal) ;
+
+--
+--
+--
+-- float4 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_float4_consistent(internal,float4,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_distance(internal,float4,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_float4_ops
+DEFAULT FOR TYPE float4 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_float4_consistent (internal, float4, int2, oid, internal),
+	FUNCTION	2	gbt_float4_union (internal, internal),
+	FUNCTION	3	gbt_float4_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_float4_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_float4_picksplit (internal, internal),
+	FUNCTION	7	gbt_float4_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+ALTER OPERATOR FAMILY gist_float4_ops USING gist ADD
+	OPERATOR	6	<> (float4, float4) ,
+	OPERATOR	15	<-> (float4, float4) FOR ORDER BY pg_catalog.float_ops ,
+	FUNCTION	8 (float4, float4) gbt_float4_distance (internal, float4, int2, oid, internal) ,
+	FUNCTION	9 (float4, float4) gbt_float4_fetch (internal) ;
+
+--
+--
+--
+-- float8 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_float8_consistent(internal,float8,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_distance(internal,float8,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_float8_ops
+DEFAULT FOR TYPE float8 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_float8_consistent (internal, float8, int2, oid, internal),
+	FUNCTION	2	gbt_float8_union (internal, internal),
+	FUNCTION	3	gbt_float8_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_float8_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_float8_picksplit (internal, internal),
+	FUNCTION	7	gbt_float8_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_float8_ops USING gist ADD
+	OPERATOR	6	<> (float8, float8) ,
+	OPERATOR	15	<-> (float8, float8) FOR ORDER BY pg_catalog.float_ops ,
+	FUNCTION	8 (float8, float8) gbt_float8_distance (internal, float8, int2, oid, internal) ,
+	FUNCTION	9 (float8, float8) gbt_float8_fetch (internal) ;
+
+--
+--
+--
+-- timestamp ops
+--
+--
+--
+
+CREATE FUNCTION gbt_ts_consistent(internal,timestamp,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_distance(internal,timestamp,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_tstz_consistent(internal,timestamptz,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_tstz_distance(internal,timestamptz,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_tstz_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_timestamp_ops
+DEFAULT FOR TYPE timestamp USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_ts_consistent (internal, timestamp, int2, oid, internal),
+	FUNCTION	2	gbt_ts_union (internal, internal),
+	FUNCTION	3	gbt_ts_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_ts_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_ts_picksplit (internal, internal),
+	FUNCTION	7	gbt_ts_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_timestamp_ops USING gist ADD
+	OPERATOR	6	<> (timestamp, timestamp) ,
+	OPERATOR	15	<-> (timestamp, timestamp) FOR ORDER BY pg_catalog.interval_ops ,
+	FUNCTION	8 (timestamp, timestamp) gbt_ts_distance (internal, timestamp, int2, oid, internal) ,
+	FUNCTION	9 (timestamp, timestamp) gbt_ts_fetch (internal) ;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_timestamptz_ops
+DEFAULT FOR TYPE timestamptz USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_tstz_consistent (internal, timestamptz, int2, oid, internal),
+	FUNCTION	2	gbt_ts_union (internal, internal),
+	FUNCTION	3	gbt_tstz_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_ts_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_ts_picksplit (internal, internal),
+	FUNCTION	7	gbt_ts_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_timestamptz_ops USING gist ADD
+	OPERATOR	6	<> (timestamptz, timestamptz) ,
+	OPERATOR	15	<-> (timestamptz, timestamptz) FOR ORDER BY pg_catalog.interval_ops ,
+	FUNCTION	8 (timestamptz, timestamptz) gbt_tstz_distance (internal, timestamptz, int2, oid, internal) ,
+	FUNCTION	9 (timestamptz, timestamptz) gbt_ts_fetch (internal) ;
+
+--
+--
+--
+-- time ops
+--
+--
+--
+
+CREATE FUNCTION gbt_time_consistent(internal,time,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_distance(internal,time,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_timetz_consistent(internal,timetz,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_timetz_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_time_ops
+DEFAULT FOR TYPE time USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_time_consistent (internal, time, int2, oid, internal),
+	FUNCTION	2	gbt_time_union (internal, internal),
+	FUNCTION	3	gbt_time_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_time_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_time_picksplit (internal, internal),
+	FUNCTION	7	gbt_time_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_time_ops USING gist ADD
+	OPERATOR	6	<> (time, time) ,
+	OPERATOR	15	<-> (time, time) FOR ORDER BY pg_catalog.interval_ops ,
+	FUNCTION	8 (time, time) gbt_time_distance (internal, time, int2, oid, internal) ,
+	FUNCTION	9 (time, time) gbt_time_fetch (internal) ;
+
+
+CREATE OPERATOR CLASS gist_timetz_ops
+DEFAULT FOR TYPE timetz USING gist
+AS
+	OPERATOR	1	<   ,
+	OPERATOR	2	<=  ,
+	OPERATOR	3	=   ,
+	OPERATOR	4	>=  ,
+	OPERATOR	5	>   ,
+	FUNCTION	1	gbt_timetz_consistent (internal, timetz, int2, oid, internal),
+	FUNCTION	2	gbt_time_union (internal, internal),
+	FUNCTION	3	gbt_timetz_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_time_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_time_picksplit (internal, internal),
+	FUNCTION	7	gbt_time_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_timetz_ops USING gist ADD
+	OPERATOR	6	<> (timetz, timetz) ;
+	-- no 'fetch' function, as the compress function is lossy.
+
+
+--
+--
+--
+-- date ops
+--
+--
+--
+
+CREATE FUNCTION gbt_date_consistent(internal,date,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_distance(internal,date,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_date_ops
+DEFAULT FOR TYPE date USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_date_consistent (internal, date, int2, oid, internal),
+	FUNCTION	2	gbt_date_union (internal, internal),
+	FUNCTION	3	gbt_date_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_date_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_date_picksplit (internal, internal),
+	FUNCTION	7	gbt_date_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+ALTER OPERATOR FAMILY gist_date_ops USING gist ADD
+	OPERATOR	6	<> (date, date) ,
+	OPERATOR	15	<-> (date, date) FOR ORDER BY pg_catalog.integer_ops ,
+	FUNCTION	8 (date, date) gbt_date_distance (internal, date, int2, oid, internal) ,
+	FUNCTION	9 (date, date) gbt_date_fetch (internal) ;
+
+
+--
+--
+--
+-- interval ops
+--
+--
+--
+
+CREATE FUNCTION gbt_intv_consistent(internal,interval,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_distance(internal,interval,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_decompress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_union(internal, internal)
+RETURNS gbtreekey32
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_same(gbtreekey32, gbtreekey32, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_interval_ops
+DEFAULT FOR TYPE interval USING gist
+AS
+	OPERATOR	1	< ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	= ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	> ,
+	FUNCTION	1	gbt_intv_consistent (internal, interval, int2, oid, internal),
+	FUNCTION	2	gbt_intv_union (internal, internal),
+	FUNCTION	3	gbt_intv_compress (internal),
+	FUNCTION	4	gbt_intv_decompress (internal),
+	FUNCTION	5	gbt_intv_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_intv_picksplit (internal, internal),
+	FUNCTION	7	gbt_intv_same (gbtreekey32, gbtreekey32, internal),
+	STORAGE		gbtreekey32;
+
+ALTER OPERATOR FAMILY gist_interval_ops USING gist ADD
+	OPERATOR	6	<> (interval, interval) ,
+	OPERATOR	15	<-> (interval, interval) FOR ORDER BY pg_catalog.interval_ops ,
+	FUNCTION	8 (interval, interval) gbt_intv_distance (internal, interval, int2, oid, internal) ,
+	FUNCTION	9 (interval, interval) gbt_intv_fetch (internal) ;
+
+
+--
+--
+--
+-- cash ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_cash_consistent(internal,money,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_distance(internal,money,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_cash_ops
+DEFAULT FOR TYPE money USING gist
+AS
+	OPERATOR	1	< ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	= ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	> ,
+	FUNCTION	1	gbt_cash_consistent (internal, money, int2, oid, internal),
+	FUNCTION	2	gbt_cash_union (internal, internal),
+	FUNCTION	3	gbt_cash_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_cash_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_cash_picksplit (internal, internal),
+	FUNCTION	7	gbt_cash_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_cash_ops USING gist ADD
+	OPERATOR	6	<> (money, money) ,
+	OPERATOR	15	<-> (money, money) FOR ORDER BY pg_catalog.money_ops ,
+	FUNCTION	8 (money, money) gbt_cash_distance (internal, money, int2, oid, internal) ,
+	FUNCTION	9 (money, money) gbt_cash_fetch (internal) ;
+
+
+--
+--
+--
+-- macaddr ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_macad_consistent(internal,macaddr,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_macaddr_ops
+DEFAULT FOR TYPE macaddr USING gist
+AS
+	OPERATOR	1	< ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	= ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	> ,
+	FUNCTION	1	gbt_macad_consistent (internal, macaddr, int2, oid, internal),
+	FUNCTION	2	gbt_macad_union (internal, internal),
+	FUNCTION	3	gbt_macad_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_macad_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_macad_picksplit (internal, internal),
+	FUNCTION	7	gbt_macad_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_macaddr_ops USING gist ADD
+	OPERATOR	6	<> (macaddr, macaddr) ,
+	FUNCTION	9 (macaddr, macaddr) gbt_macad_fetch (internal);
+
+
+--
+--
+--
+-- text/ bpchar ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_text_consistent(internal,text,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bpchar_consistent(internal,bpchar,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bpchar_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_union(internal, internal)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_same(gbtreekey_var, gbtreekey_var, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_text_ops
+DEFAULT FOR TYPE text USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_text_consistent (internal, text, int2, oid, internal),
+	FUNCTION	2	gbt_text_union (internal, internal),
+	FUNCTION	3	gbt_text_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_text_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_text_picksplit (internal, internal),
+	FUNCTION	7	gbt_text_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_text_ops USING gist ADD
+	OPERATOR	6	<> (text, text) ,
+	FUNCTION	9 (text, text) gbt_var_fetch (internal) ;
+
+
+---- Create the operator class
+CREATE OPERATOR CLASS gist_bpchar_ops
+DEFAULT FOR TYPE bpchar USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_bpchar_consistent (internal, bpchar , int2, oid, internal),
+	FUNCTION	2	gbt_text_union (internal, internal),
+	FUNCTION	3	gbt_bpchar_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_text_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_text_picksplit (internal, internal),
+	FUNCTION	7	gbt_text_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_bpchar_ops USING gist ADD
+	OPERATOR	6	<> (bpchar, bpchar) ,
+	FUNCTION	9 (bpchar, bpchar) gbt_var_fetch (internal) ;
+
+--
+--
+-- bytea ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_bytea_consistent(internal,bytea,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_union(internal, internal)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_same(gbtreekey_var, gbtreekey_var, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_bytea_ops
+DEFAULT FOR TYPE bytea USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_bytea_consistent (internal, bytea, int2, oid, internal),
+	FUNCTION	2	gbt_bytea_union (internal, internal),
+	FUNCTION	3	gbt_bytea_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_bytea_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_bytea_picksplit (internal, internal),
+	FUNCTION	7	gbt_bytea_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_bytea_ops USING gist ADD
+	OPERATOR	6	<> (bytea, bytea) ,
+	FUNCTION	9 (bytea, bytea) gbt_var_fetch (internal) ;
+
+
+--
+--
+--
+-- numeric ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_numeric_consistent(internal,numeric,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_union(internal, internal)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_same(gbtreekey_var, gbtreekey_var, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_numeric_ops
+DEFAULT FOR TYPE numeric USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_numeric_consistent (internal, numeric, int2, oid, internal),
+	FUNCTION	2	gbt_numeric_union (internal, internal),
+	FUNCTION	3	gbt_numeric_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_numeric_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_numeric_picksplit (internal, internal),
+	FUNCTION	7	gbt_numeric_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_numeric_ops USING gist ADD
+	OPERATOR	6	<> (numeric, numeric) ,
+	FUNCTION	9 (numeric, numeric) gbt_var_fetch (internal) ;
+
+
+--
+--
+-- bit ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_bit_consistent(internal,bit,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_union(internal, internal)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_same(gbtreekey_var, gbtreekey_var, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_bit_ops
+DEFAULT FOR TYPE bit USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_bit_consistent (internal, bit, int2, oid, internal),
+	FUNCTION	2	gbt_bit_union (internal, internal),
+	FUNCTION	3	gbt_bit_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_bit_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_bit_picksplit (internal, internal),
+	FUNCTION	7	gbt_bit_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_bit_ops USING gist ADD
+	OPERATOR	6	<> (bit, bit) ,
+	FUNCTION	9 (bit, bit) gbt_var_fetch (internal) ;
+
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_vbit_ops
+DEFAULT FOR TYPE varbit USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_bit_consistent (internal, bit, int2, oid, internal),
+	FUNCTION	2	gbt_bit_union (internal, internal),
+	FUNCTION	3	gbt_bit_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_bit_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_bit_picksplit (internal, internal),
+	FUNCTION	7	gbt_bit_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_vbit_ops USING gist ADD
+	OPERATOR	6	<> (varbit, varbit) ,
+	FUNCTION	9 (varbit, varbit) gbt_var_fetch (internal) ;
+
+
+--
+--
+--
+-- inet/cidr ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_inet_consistent(internal,inet,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_inet_ops
+DEFAULT FOR TYPE inet USING gist
+AS
+	OPERATOR	1	<   ,
+	OPERATOR	2	<=  ,
+	OPERATOR	3	=   ,
+	OPERATOR	4	>=  ,
+	OPERATOR	5	>   ,
+	FUNCTION	1	gbt_inet_consistent (internal, inet, int2, oid, internal),
+	FUNCTION	2	gbt_inet_union (internal, internal),
+	FUNCTION	3	gbt_inet_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_inet_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_inet_picksplit (internal, internal),
+	FUNCTION	7	gbt_inet_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_inet_ops USING gist ADD
+	OPERATOR	6	<>  (inet, inet) ;
+	-- no fetch support, the compress function is lossy
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_cidr_ops
+DEFAULT FOR TYPE cidr USING gist
+AS
+	OPERATOR	1	<  (inet, inet)  ,
+	OPERATOR	2	<= (inet, inet)  ,
+	OPERATOR	3	=  (inet, inet)  ,
+	OPERATOR	4	>= (inet, inet)  ,
+	OPERATOR	5	>  (inet, inet)  ,
+	FUNCTION	1	gbt_inet_consistent (internal, inet, int2, oid, internal),
+	FUNCTION	2	gbt_inet_union (internal, internal),
+	FUNCTION	3	gbt_inet_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_inet_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_inet_picksplit (internal, internal),
+	FUNCTION	7	gbt_inet_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_cidr_ops USING gist ADD
+	OPERATOR	6	<> (inet, inet) ;
+	-- no fetch support, the compress function is lossy
+
+--
+--
+--
+-- uuid ops
+--
+--
+---- define the GiST support methods
+CREATE FUNCTION gbt_uuid_consistent(internal,uuid,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_union(internal, internal)
+RETURNS gbtreekey32
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_same(gbtreekey32, gbtreekey32, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_uuid_ops
+DEFAULT FOR TYPE uuid USING gist
+AS
+	OPERATOR	1	<   ,
+	OPERATOR	2	<=  ,
+	OPERATOR	3	=   ,
+	OPERATOR	4	>=  ,
+	OPERATOR	5	>   ,
+	FUNCTION	1	gbt_uuid_consistent (internal, uuid, int2, oid, internal),
+	FUNCTION	2	gbt_uuid_union (internal, internal),
+	FUNCTION	3	gbt_uuid_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_uuid_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_uuid_picksplit (internal, internal),
+	FUNCTION	7	gbt_uuid_same (gbtreekey32, gbtreekey32, internal),
+	STORAGE		gbtreekey32;
+
+-- These are "loose" in the opfamily for consistency with the rest of btree_gist
+ALTER OPERATOR FAMILY gist_uuid_ops USING gist ADD
+	OPERATOR	6	<>  (uuid, uuid) ,
+	FUNCTION	9 (uuid, uuid) gbt_uuid_fetch (internal) ;
+
+
+-- Add support for indexing macaddr8 columns
+
+-- define the GiST support methods
+CREATE FUNCTION gbt_macad8_consistent(internal,macaddr8,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_macaddr8_ops
+DEFAULT FOR TYPE macaddr8 USING gist
+AS
+	OPERATOR	1	< ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	= ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	> ,
+	FUNCTION	1	gbt_macad8_consistent (internal, macaddr8, int2, oid, internal),
+	FUNCTION	2	gbt_macad8_union (internal, internal),
+	FUNCTION	3	gbt_macad8_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_macad8_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_macad8_picksplit (internal, internal),
+	FUNCTION	7	gbt_macad8_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_macaddr8_ops USING gist ADD
+	OPERATOR	6	<> (macaddr8, macaddr8) ,
+	FUNCTION	9 (macaddr8, macaddr8) gbt_macad8_fetch (internal);
+
+--
+--
+--
+-- enum ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_enum_consistent(internal,anyenum,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_enum_ops
+DEFAULT FOR TYPE anyenum USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_enum_consistent (internal, anyenum, int2, oid, internal),
+	FUNCTION	2	gbt_enum_union (internal, internal),
+	FUNCTION	3	gbt_enum_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_enum_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_enum_picksplit (internal, internal),
+	FUNCTION	7	gbt_enum_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+ALTER OPERATOR FAMILY gist_enum_ops USING gist ADD
+	OPERATOR	6	<> (anyenum, anyenum) ,
+	FUNCTION	9 (anyenum, anyenum) gbt_enum_fetch (internal) ;
diff --git a/contrib/btree_gist/btree_gist.control b/contrib/btree_gist/btree_gist.control
index 81c8509..9ced3bc 100644
--- a/contrib/btree_gist/btree_gist.control
+++ b/contrib/btree_gist/btree_gist.control
@@ -1,5 +1,5 @@
 # btree_gist extension
 comment = 'support for indexing common datatypes in GiST'
-default_version = '1.5'
+default_version = '1.6'
 module_pathname = '$libdir/btree_gist'
 relocatable = true
diff --git a/contrib/btree_gist/btree_int2.c b/contrib/btree_gist/btree_int2.c
index 7674e2d..3c402c0 100644
--- a/contrib/btree_gist/btree_int2.c
+++ b/contrib/btree_gist/btree_int2.c
@@ -90,26 +90,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(int2_dist);
-Datum
-int2_dist(PG_FUNCTION_ARGS)
-{
-	int16		a = PG_GETARG_INT16(0);
-	int16		b = PG_GETARG_INT16(1);
-	int16		r;
-	int16		ra;
-
-	if (pg_sub_s16_overflow(a, b, &r) ||
-		r == PG_INT16_MIN)
-		ereport(ERROR,
-				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
-				 errmsg("smallint out of range")));
-
-	ra = Abs(r);
-
-	PG_RETURN_INT16(ra);
-}
-
 
 /**************************************************
  * int16 ops
diff --git a/contrib/btree_gist/btree_int4.c b/contrib/btree_gist/btree_int4.c
index 80005ab..a4f1968 100644
--- a/contrib/btree_gist/btree_int4.c
+++ b/contrib/btree_gist/btree_int4.c
@@ -91,27 +91,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(int4_dist);
-Datum
-int4_dist(PG_FUNCTION_ARGS)
-{
-	int32		a = PG_GETARG_INT32(0);
-	int32		b = PG_GETARG_INT32(1);
-	int32		r;
-	int32		ra;
-
-	if (pg_sub_s32_overflow(a, b, &r) ||
-		r == PG_INT32_MIN)
-		ereport(ERROR,
-				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
-				 errmsg("integer out of range")));
-
-	ra = Abs(r);
-
-	PG_RETURN_INT32(ra);
-}
-
-
 /**************************************************
  * int32 ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_int8.c b/contrib/btree_gist/btree_int8.c
index b0fd3e1..efec64c 100644
--- a/contrib/btree_gist/btree_int8.c
+++ b/contrib/btree_gist/btree_int8.c
@@ -91,27 +91,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(int8_dist);
-Datum
-int8_dist(PG_FUNCTION_ARGS)
-{
-	int64		a = PG_GETARG_INT64(0);
-	int64		b = PG_GETARG_INT64(1);
-	int64		r;
-	int64		ra;
-
-	if (pg_sub_s64_overflow(a, b, &r) ||
-		r == PG_INT64_MIN)
-		ereport(ERROR,
-				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
-				 errmsg("bigint out of range")));
-
-	ra = Abs(r);
-
-	PG_RETURN_INT64(ra);
-}
-
-
 /**************************************************
  * int64 ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_interval.c b/contrib/btree_gist/btree_interval.c
index 3a527a7..b244fa4 100644
--- a/contrib/btree_gist/btree_interval.c
+++ b/contrib/btree_gist/btree_interval.c
@@ -110,32 +110,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-Interval *
-abs_interval(Interval *a)
-{
-	static Interval zero = {0, 0, 0};
-
-	if (DatumGetBool(DirectFunctionCall2(interval_lt,
-										 IntervalPGetDatum(a),
-										 IntervalPGetDatum(&zero))))
-		a = DatumGetIntervalP(DirectFunctionCall1(interval_um,
-												  IntervalPGetDatum(a)));
-
-	return a;
-}
-
-PG_FUNCTION_INFO_V1(interval_dist);
-Datum
-interval_dist(PG_FUNCTION_ARGS)
-{
-	Datum		diff = DirectFunctionCall2(interval_mi,
-										   PG_GETARG_DATUM(0),
-										   PG_GETARG_DATUM(1));
-
-	PG_RETURN_INTERVAL_P(abs_interval(DatumGetIntervalP(diff)));
-}
-
-
 /**************************************************
  * interval ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_oid.c b/contrib/btree_gist/btree_oid.c
index 00e7019..3a0bd73 100644
--- a/contrib/btree_gist/btree_oid.c
+++ b/contrib/btree_gist/btree_oid.c
@@ -96,22 +96,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(oid_dist);
-Datum
-oid_dist(PG_FUNCTION_ARGS)
-{
-	Oid			a = PG_GETARG_OID(0);
-	Oid			b = PG_GETARG_OID(1);
-	Oid			res;
-
-	if (a < b)
-		res = b - a;
-	else
-		res = a - b;
-	PG_RETURN_OID(res);
-}
-
-
 /**************************************************
  * Oid ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_time.c b/contrib/btree_gist/btree_time.c
index 90cf655..b6e7e4a 100644
--- a/contrib/btree_gist/btree_time.c
+++ b/contrib/btree_gist/btree_time.c
@@ -137,18 +137,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(time_dist);
-Datum
-time_dist(PG_FUNCTION_ARGS)
-{
-	Datum		diff = DirectFunctionCall2(time_mi_time,
-										   PG_GETARG_DATUM(0),
-										   PG_GETARG_DATUM(1));
-
-	PG_RETURN_INTERVAL_P(abs_interval(DatumGetIntervalP(diff)));
-}
-
-
 /**************************************************
  * time ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_ts.c b/contrib/btree_gist/btree_ts.c
index 49d1849..b0271a6 100644
--- a/contrib/btree_gist/btree_ts.c
+++ b/contrib/btree_gist/btree_ts.c
@@ -142,55 +142,6 @@ static const gbtree_ninfo tinfo =
 };
 
 
-PG_FUNCTION_INFO_V1(ts_dist);
-Datum
-ts_dist(PG_FUNCTION_ARGS)
-{
-	Timestamp	a = PG_GETARG_TIMESTAMP(0);
-	Timestamp	b = PG_GETARG_TIMESTAMP(1);
-	Interval   *r;
-
-	if (TIMESTAMP_NOT_FINITE(a) || TIMESTAMP_NOT_FINITE(b))
-	{
-		Interval   *p = palloc(sizeof(Interval));
-
-		p->day = INT_MAX;
-		p->month = INT_MAX;
-		p->time = PG_INT64_MAX;
-		PG_RETURN_INTERVAL_P(p);
-	}
-	else
-		r = DatumGetIntervalP(DirectFunctionCall2(timestamp_mi,
-												  PG_GETARG_DATUM(0),
-												  PG_GETARG_DATUM(1)));
-	PG_RETURN_INTERVAL_P(abs_interval(r));
-}
-
-PG_FUNCTION_INFO_V1(tstz_dist);
-Datum
-tstz_dist(PG_FUNCTION_ARGS)
-{
-	TimestampTz a = PG_GETARG_TIMESTAMPTZ(0);
-	TimestampTz b = PG_GETARG_TIMESTAMPTZ(1);
-	Interval   *r;
-
-	if (TIMESTAMP_NOT_FINITE(a) || TIMESTAMP_NOT_FINITE(b))
-	{
-		Interval   *p = palloc(sizeof(Interval));
-
-		p->day = INT_MAX;
-		p->month = INT_MAX;
-		p->time = PG_INT64_MAX;
-		PG_RETURN_INTERVAL_P(p);
-	}
-
-	r = DatumGetIntervalP(DirectFunctionCall2(timestamp_mi,
-											  PG_GETARG_DATUM(0),
-											  PG_GETARG_DATUM(1)));
-	PG_RETURN_INTERVAL_P(abs_interval(r));
-}
-
-
 /**************************************************
  * timestamp ops
  **************************************************/
diff --git a/contrib/btree_gist/btree_utils_num.h b/contrib/btree_gist/btree_utils_num.h
index d7945f8..794d92b 100644
--- a/contrib/btree_gist/btree_utils_num.h
+++ b/contrib/btree_gist/btree_utils_num.h
@@ -107,8 +107,6 @@ do {															\
 } while(0)
 
 
-extern Interval *abs_interval(Interval *a);
-
 extern bool gbt_num_consistent(const GBT_NUMKEY_R *key, const void *query,
 				   const StrategyNumber *strategy, bool is_leaf,
 				   const gbtree_ninfo *tinfo, FmgrInfo *flinfo);
-- 
2.7.4


--------------C911D84EF7B2A7EE9B555892
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Content-Transfer-Encoding: 7bit
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^ permalink  raw  reply  [nested|flat] 6+ messages in thread

* [PATCH 6/7] Remove distance operators from btree_gist
@ 2019-01-11 12:51  Nikita Glukhov <[email protected]>
  0 siblings, 0 replies; 6+ messages in thread

From: Nikita Glukhov @ 2019-01-11 12:51 UTC (permalink / raw)

---
 contrib/btree_gist/Makefile                 |    5 +-
 contrib/btree_gist/btree_cash.c             |   15 +-
 contrib/btree_gist/btree_date.c             |    7 +-
 contrib/btree_gist/btree_float4.c           |    9 +-
 contrib/btree_gist/btree_float8.c           |    9 +-
 contrib/btree_gist/btree_gist--1.2.sql      | 1570 --------------------------
 contrib/btree_gist/btree_gist--1.5--1.6.sql |   99 ++
 contrib/btree_gist/btree_gist--1.6.sql      | 1615 +++++++++++++++++++++++++++
 contrib/btree_gist/btree_gist.control       |    2 +-
 contrib/btree_gist/btree_int2.c             |   15 +-
 contrib/btree_gist/btree_int4.c             |   15 +-
 contrib/btree_gist/btree_int8.c             |   15 +-
 contrib/btree_gist/btree_interval.c         |    6 +-
 contrib/btree_gist/btree_oid.c              |   10 +-
 contrib/btree_gist/btree_time.c             |    6 +-
 contrib/btree_gist/btree_ts.c               |   38 +-
 doc/src/sgml/btree-gist.sgml                |   13 +
 17 files changed, 1743 insertions(+), 1706 deletions(-)
 delete mode 100644 contrib/btree_gist/btree_gist--1.2.sql
 create mode 100644 contrib/btree_gist/btree_gist--1.5--1.6.sql
 create mode 100644 contrib/btree_gist/btree_gist--1.6.sql

diff --git a/contrib/btree_gist/Makefile b/contrib/btree_gist/Makefile
index af65120..46ab241 100644
--- a/contrib/btree_gist/Makefile
+++ b/contrib/btree_gist/Makefile
@@ -11,8 +11,9 @@ OBJS =  btree_gist.o btree_utils_num.o btree_utils_var.o btree_int2.o \
 
 EXTENSION = btree_gist
 DATA = btree_gist--unpackaged--1.0.sql btree_gist--1.0--1.1.sql \
-       btree_gist--1.1--1.2.sql btree_gist--1.2.sql btree_gist--1.2--1.3.sql \
-       btree_gist--1.3--1.4.sql btree_gist--1.4--1.5.sql
+       btree_gist--1.1--1.2.sql btree_gist--1.2--1.3.sql \
+       btree_gist--1.3--1.4.sql btree_gist--1.4--1.5.sql \
+       btree_gist--1.5--1.6.sql btree_gist--1.6.sql
 PGFILEDESC = "btree_gist - B-tree equivalent GiST operator classes"
 
 REGRESS = init int2 int4 int8 float4 float8 cash oid timestamp timestamptz \
diff --git a/contrib/btree_gist/btree_cash.c b/contrib/btree_gist/btree_cash.c
index 894d0a2..1b0e317 100644
--- a/contrib/btree_gist/btree_cash.c
+++ b/contrib/btree_gist/btree_cash.c
@@ -95,20 +95,7 @@ PG_FUNCTION_INFO_V1(cash_dist);
 Datum
 cash_dist(PG_FUNCTION_ARGS)
 {
-	Cash		a = PG_GETARG_CASH(0);
-	Cash		b = PG_GETARG_CASH(1);
-	Cash		r;
-	Cash		ra;
-
-	if (pg_sub_s64_overflow(a, b, &r) ||
-		r == PG_INT64_MIN)
-		ereport(ERROR,
-				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
-				 errmsg("money out of range")));
-
-	ra = Abs(r);
-
-	PG_RETURN_CASH(ra);
+	return cash_distance(fcinfo);
 }
 
 /**************************************************
diff --git a/contrib/btree_gist/btree_date.c b/contrib/btree_gist/btree_date.c
index 992ce57..f3f0fa1 100644
--- a/contrib/btree_gist/btree_date.c
+++ b/contrib/btree_gist/btree_date.c
@@ -113,12 +113,7 @@ PG_FUNCTION_INFO_V1(date_dist);
 Datum
 date_dist(PG_FUNCTION_ARGS)
 {
-	/* we assume the difference can't overflow */
-	Datum		diff = DirectFunctionCall2(date_mi,
-										   PG_GETARG_DATUM(0),
-										   PG_GETARG_DATUM(1));
-
-	PG_RETURN_INT32(Abs(DatumGetInt32(diff)));
+	return date_distance(fcinfo);
 }
 
 
diff --git a/contrib/btree_gist/btree_float4.c b/contrib/btree_gist/btree_float4.c
index 6b20f44..0a9148d 100644
--- a/contrib/btree_gist/btree_float4.c
+++ b/contrib/btree_gist/btree_float4.c
@@ -93,14 +93,7 @@ PG_FUNCTION_INFO_V1(float4_dist);
 Datum
 float4_dist(PG_FUNCTION_ARGS)
 {
-	float4		a = PG_GETARG_FLOAT4(0);
-	float4		b = PG_GETARG_FLOAT4(1);
-	float4		r;
-
-	r = a - b;
-	CHECKFLOATVAL(r, isinf(a) || isinf(b), true);
-
-	PG_RETURN_FLOAT4(Abs(r));
+	return float4dist(fcinfo);
 }
 
 
diff --git a/contrib/btree_gist/btree_float8.c b/contrib/btree_gist/btree_float8.c
index ee114cb..8b73b57 100644
--- a/contrib/btree_gist/btree_float8.c
+++ b/contrib/btree_gist/btree_float8.c
@@ -101,14 +101,7 @@ PG_FUNCTION_INFO_V1(float8_dist);
 Datum
 float8_dist(PG_FUNCTION_ARGS)
 {
-	float8		a = PG_GETARG_FLOAT8(0);
-	float8		b = PG_GETARG_FLOAT8(1);
-	float8		r;
-
-	r = a - b;
-	CHECKFLOATVAL(r, isinf(a) || isinf(b), true);
-
-	PG_RETURN_FLOAT8(Abs(r));
+	return float8dist(fcinfo);
 }
 
 /**************************************************
diff --git a/contrib/btree_gist/btree_gist--1.2.sql b/contrib/btree_gist/btree_gist--1.2.sql
deleted file mode 100644
index 1efe753..0000000
--- a/contrib/btree_gist/btree_gist--1.2.sql
+++ /dev/null
@@ -1,1570 +0,0 @@
-/* contrib/btree_gist/btree_gist--1.2.sql */
-
--- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION btree_gist" to load this file. \quit
-
-CREATE FUNCTION gbtreekey4_in(cstring)
-RETURNS gbtreekey4
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey4_out(gbtreekey4)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey4 (
-	INTERNALLENGTH = 4,
-	INPUT  = gbtreekey4_in,
-	OUTPUT = gbtreekey4_out
-);
-
-CREATE FUNCTION gbtreekey8_in(cstring)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey8_out(gbtreekey8)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey8 (
-	INTERNALLENGTH = 8,
-	INPUT  = gbtreekey8_in,
-	OUTPUT = gbtreekey8_out
-);
-
-CREATE FUNCTION gbtreekey16_in(cstring)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey16_out(gbtreekey16)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey16 (
-	INTERNALLENGTH = 16,
-	INPUT  = gbtreekey16_in,
-	OUTPUT = gbtreekey16_out
-);
-
-CREATE FUNCTION gbtreekey32_in(cstring)
-RETURNS gbtreekey32
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey32_out(gbtreekey32)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey32 (
-	INTERNALLENGTH = 32,
-	INPUT  = gbtreekey32_in,
-	OUTPUT = gbtreekey32_out
-);
-
-CREATE FUNCTION gbtreekey_var_in(cstring)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME', 'gbtreekey_in'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbtreekey_var_out(gbtreekey_var)
-RETURNS cstring
-AS 'MODULE_PATHNAME', 'gbtreekey_out'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE TYPE gbtreekey_var (
-	INTERNALLENGTH = VARIABLE,
-	INPUT  = gbtreekey_var_in,
-	OUTPUT = gbtreekey_var_out,
-	STORAGE = EXTENDED
-);
-
---distance operators
-
-CREATE FUNCTION cash_dist(money, money)
-RETURNS money
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = money,
-	RIGHTARG = money,
-	PROCEDURE = cash_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION date_dist(date, date)
-RETURNS int4
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = date,
-	RIGHTARG = date,
-	PROCEDURE = date_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION float4_dist(float4, float4)
-RETURNS float4
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = float4,
-	RIGHTARG = float4,
-	PROCEDURE = float4_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION float8_dist(float8, float8)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = float8,
-	RIGHTARG = float8,
-	PROCEDURE = float8_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION int2_dist(int2, int2)
-RETURNS int2
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = int2,
-	RIGHTARG = int2,
-	PROCEDURE = int2_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION int4_dist(int4, int4)
-RETURNS int4
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = int4,
-	RIGHTARG = int4,
-	PROCEDURE = int4_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION int8_dist(int8, int8)
-RETURNS int8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = int8,
-	RIGHTARG = int8,
-	PROCEDURE = int8_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION interval_dist(interval, interval)
-RETURNS interval
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = interval,
-	RIGHTARG = interval,
-	PROCEDURE = interval_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION oid_dist(oid, oid)
-RETURNS oid
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = oid,
-	RIGHTARG = oid,
-	PROCEDURE = oid_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION time_dist(time, time)
-RETURNS interval
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = time,
-	RIGHTARG = time,
-	PROCEDURE = time_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION ts_dist(timestamp, timestamp)
-RETURNS interval
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = timestamp,
-	RIGHTARG = timestamp,
-	PROCEDURE = ts_dist,
-	COMMUTATOR = '<->'
-);
-
-CREATE FUNCTION tstz_dist(timestamptz, timestamptz)
-RETURNS interval
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE OPERATOR <-> (
-	LEFTARG = timestamptz,
-	RIGHTARG = timestamptz,
-	PROCEDURE = tstz_dist,
-	COMMUTATOR = '<->'
-);
-
-
---
---
---
--- oid ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_oid_consistent(internal,oid,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_distance(internal,oid,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_decompress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_var_decompress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_var_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_union(internal, internal)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_oid_same(gbtreekey8, gbtreekey8, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_oid_ops
-DEFAULT FOR TYPE oid USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_oid_consistent (internal, oid, int2, oid, internal),
-	FUNCTION	2	gbt_oid_union (internal, internal),
-	FUNCTION	3	gbt_oid_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_oid_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_oid_picksplit (internal, internal),
-	FUNCTION	7	gbt_oid_same (gbtreekey8, gbtreekey8, internal),
-	STORAGE		gbtreekey8;
-
--- Add operators that are new in 9.1.  We do it like this, leaving them
--- "loose" in the operator family rather than bound into the opclass, because
--- that's the only state that can be reproduced during an upgrade from 9.0.
-ALTER OPERATOR FAMILY gist_oid_ops USING gist ADD
-	OPERATOR	6	<> (oid, oid) ,
-	OPERATOR	15	<-> (oid, oid) FOR ORDER BY pg_catalog.oid_ops ,
-	FUNCTION	8 (oid, oid) gbt_oid_distance (internal, oid, int2, oid, internal) ,
-	-- Also add support function for index-only-scans, added in 9.5.
-	FUNCTION	9 (oid, oid) gbt_oid_fetch (internal) ;
-
-
---
---
---
--- int2 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_int2_consistent(internal,int2,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_distance(internal,int2,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_union(internal, internal)
-RETURNS gbtreekey4
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int2_same(gbtreekey4, gbtreekey4, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_int2_ops
-DEFAULT FOR TYPE int2 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_int2_consistent (internal, int2, int2, oid, internal),
-	FUNCTION	2	gbt_int2_union (internal, internal),
-	FUNCTION	3	gbt_int2_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_int2_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_int2_picksplit (internal, internal),
-	FUNCTION	7	gbt_int2_same (gbtreekey4, gbtreekey4, internal),
-	STORAGE		gbtreekey4;
-
-ALTER OPERATOR FAMILY gist_int2_ops USING gist ADD
-	OPERATOR	6	<> (int2, int2) ,
-	OPERATOR	15	<-> (int2, int2) FOR ORDER BY pg_catalog.integer_ops ,
-	FUNCTION	8 (int2, int2) gbt_int2_distance (internal, int2, int2, oid, internal) ,
-	FUNCTION	9 (int2, int2) gbt_int2_fetch (internal) ;
-
---
---
---
--- int4 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_int4_consistent(internal,int4,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_distance(internal,int4,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_union(internal, internal)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int4_same(gbtreekey8, gbtreekey8, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_int4_ops
-DEFAULT FOR TYPE int4 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_int4_consistent (internal, int4, int2, oid, internal),
-	FUNCTION	2	gbt_int4_union (internal, internal),
-	FUNCTION	3	gbt_int4_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_int4_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_int4_picksplit (internal, internal),
-	FUNCTION	7	gbt_int4_same (gbtreekey8, gbtreekey8, internal),
-	STORAGE		gbtreekey8;
-
-ALTER OPERATOR FAMILY gist_int4_ops USING gist ADD
-	OPERATOR	6	<> (int4, int4) ,
-	OPERATOR	15	<-> (int4, int4) FOR ORDER BY pg_catalog.integer_ops ,
-	FUNCTION	8 (int4, int4) gbt_int4_distance (internal, int4, int2, oid, internal) ,
-	FUNCTION	9 (int4, int4) gbt_int4_fetch (internal) ;
-
-
---
---
---
--- int8 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_int8_consistent(internal,int8,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_distance(internal,int8,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_int8_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_int8_ops
-DEFAULT FOR TYPE int8 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_int8_consistent (internal, int8, int2, oid, internal),
-	FUNCTION	2	gbt_int8_union (internal, internal),
-	FUNCTION	3	gbt_int8_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_int8_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_int8_picksplit (internal, internal),
-	FUNCTION	7	gbt_int8_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_int8_ops USING gist ADD
-	OPERATOR	6	<> (int8, int8) ,
-	OPERATOR	15	<-> (int8, int8) FOR ORDER BY pg_catalog.integer_ops ,
-	FUNCTION	8 (int8, int8) gbt_int8_distance (internal, int8, int2, oid, internal) ,
-	FUNCTION	9 (int8, int8) gbt_int8_fetch (internal) ;
-
---
---
---
--- float4 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_float4_consistent(internal,float4,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_distance(internal,float4,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_union(internal, internal)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float4_same(gbtreekey8, gbtreekey8, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_float4_ops
-DEFAULT FOR TYPE float4 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_float4_consistent (internal, float4, int2, oid, internal),
-	FUNCTION	2	gbt_float4_union (internal, internal),
-	FUNCTION	3	gbt_float4_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_float4_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_float4_picksplit (internal, internal),
-	FUNCTION	7	gbt_float4_same (gbtreekey8, gbtreekey8, internal),
-	STORAGE		gbtreekey8;
-
-ALTER OPERATOR FAMILY gist_float4_ops USING gist ADD
-	OPERATOR	6	<> (float4, float4) ,
-	OPERATOR	15	<-> (float4, float4) FOR ORDER BY pg_catalog.float_ops ,
-	FUNCTION	8 (float4, float4) gbt_float4_distance (internal, float4, int2, oid, internal) ,
-	FUNCTION	9 (float4, float4) gbt_float4_fetch (internal) ;
-
---
---
---
--- float8 ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_float8_consistent(internal,float8,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_distance(internal,float8,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_float8_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_float8_ops
-DEFAULT FOR TYPE float8 USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_float8_consistent (internal, float8, int2, oid, internal),
-	FUNCTION	2	gbt_float8_union (internal, internal),
-	FUNCTION	3	gbt_float8_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_float8_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_float8_picksplit (internal, internal),
-	FUNCTION	7	gbt_float8_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_float8_ops USING gist ADD
-	OPERATOR	6	<> (float8, float8) ,
-	OPERATOR	15	<-> (float8, float8) FOR ORDER BY pg_catalog.float_ops ,
-	FUNCTION	8 (float8, float8) gbt_float8_distance (internal, float8, int2, oid, internal) ,
-	FUNCTION	9 (float8, float8) gbt_float8_fetch (internal) ;
-
---
---
---
--- timestamp ops
---
---
---
-
-CREATE FUNCTION gbt_ts_consistent(internal,timestamp,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_distance(internal,timestamp,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_tstz_consistent(internal,timestamptz,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_tstz_distance(internal,timestamptz,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_tstz_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_ts_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_timestamp_ops
-DEFAULT FOR TYPE timestamp USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_ts_consistent (internal, timestamp, int2, oid, internal),
-	FUNCTION	2	gbt_ts_union (internal, internal),
-	FUNCTION	3	gbt_ts_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_ts_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_ts_picksplit (internal, internal),
-	FUNCTION	7	gbt_ts_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_timestamp_ops USING gist ADD
-	OPERATOR	6	<> (timestamp, timestamp) ,
-	OPERATOR	15	<-> (timestamp, timestamp) FOR ORDER BY pg_catalog.interval_ops ,
-	FUNCTION	8 (timestamp, timestamp) gbt_ts_distance (internal, timestamp, int2, oid, internal) ,
-	FUNCTION	9 (timestamp, timestamp) gbt_ts_fetch (internal) ;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_timestamptz_ops
-DEFAULT FOR TYPE timestamptz USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_tstz_consistent (internal, timestamptz, int2, oid, internal),
-	FUNCTION	2	gbt_ts_union (internal, internal),
-	FUNCTION	3	gbt_tstz_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_ts_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_ts_picksplit (internal, internal),
-	FUNCTION	7	gbt_ts_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_timestamptz_ops USING gist ADD
-	OPERATOR	6	<> (timestamptz, timestamptz) ,
-	OPERATOR	15	<-> (timestamptz, timestamptz) FOR ORDER BY pg_catalog.interval_ops ,
-	FUNCTION	8 (timestamptz, timestamptz) gbt_tstz_distance (internal, timestamptz, int2, oid, internal) ,
-	FUNCTION	9 (timestamptz, timestamptz) gbt_ts_fetch (internal) ;
-
---
---
---
--- time ops
---
---
---
-
-CREATE FUNCTION gbt_time_consistent(internal,time,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_distance(internal,time,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_timetz_consistent(internal,timetz,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_timetz_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_time_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_time_ops
-DEFAULT FOR TYPE time USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_time_consistent (internal, time, int2, oid, internal),
-	FUNCTION	2	gbt_time_union (internal, internal),
-	FUNCTION	3	gbt_time_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_time_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_time_picksplit (internal, internal),
-	FUNCTION	7	gbt_time_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_time_ops USING gist ADD
-	OPERATOR	6	<> (time, time) ,
-	OPERATOR	15	<-> (time, time) FOR ORDER BY pg_catalog.interval_ops ,
-	FUNCTION	8 (time, time) gbt_time_distance (internal, time, int2, oid, internal) ,
-	FUNCTION	9 (time, time) gbt_time_fetch (internal) ;
-
-
-CREATE OPERATOR CLASS gist_timetz_ops
-DEFAULT FOR TYPE timetz USING gist
-AS
-	OPERATOR	1	<   ,
-	OPERATOR	2	<=  ,
-	OPERATOR	3	=   ,
-	OPERATOR	4	>=  ,
-	OPERATOR	5	>   ,
-	FUNCTION	1	gbt_timetz_consistent (internal, timetz, int2, oid, internal),
-	FUNCTION	2	gbt_time_union (internal, internal),
-	FUNCTION	3	gbt_timetz_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_time_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_time_picksplit (internal, internal),
-	FUNCTION	7	gbt_time_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_timetz_ops USING gist ADD
-	OPERATOR	6	<> (timetz, timetz) ;
-	-- no 'fetch' function, as the compress function is lossy.
-
-
---
---
---
--- date ops
---
---
---
-
-CREATE FUNCTION gbt_date_consistent(internal,date,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_distance(internal,date,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_union(internal, internal)
-RETURNS gbtreekey8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_date_same(gbtreekey8, gbtreekey8, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_date_ops
-DEFAULT FOR TYPE date USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_date_consistent (internal, date, int2, oid, internal),
-	FUNCTION	2	gbt_date_union (internal, internal),
-	FUNCTION	3	gbt_date_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_date_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_date_picksplit (internal, internal),
-	FUNCTION	7	gbt_date_same (gbtreekey8, gbtreekey8, internal),
-	STORAGE		gbtreekey8;
-
-ALTER OPERATOR FAMILY gist_date_ops USING gist ADD
-	OPERATOR	6	<> (date, date) ,
-	OPERATOR	15	<-> (date, date) FOR ORDER BY pg_catalog.integer_ops ,
-	FUNCTION	8 (date, date) gbt_date_distance (internal, date, int2, oid, internal) ,
-	FUNCTION	9 (date, date) gbt_date_fetch (internal) ;
-
-
---
---
---
--- interval ops
---
---
---
-
-CREATE FUNCTION gbt_intv_consistent(internal,interval,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_distance(internal,interval,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_decompress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_union(internal, internal)
-RETURNS gbtreekey32
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_intv_same(gbtreekey32, gbtreekey32, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_interval_ops
-DEFAULT FOR TYPE interval USING gist
-AS
-	OPERATOR	1	< ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	= ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	> ,
-	FUNCTION	1	gbt_intv_consistent (internal, interval, int2, oid, internal),
-	FUNCTION	2	gbt_intv_union (internal, internal),
-	FUNCTION	3	gbt_intv_compress (internal),
-	FUNCTION	4	gbt_intv_decompress (internal),
-	FUNCTION	5	gbt_intv_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_intv_picksplit (internal, internal),
-	FUNCTION	7	gbt_intv_same (gbtreekey32, gbtreekey32, internal),
-	STORAGE		gbtreekey32;
-
-ALTER OPERATOR FAMILY gist_interval_ops USING gist ADD
-	OPERATOR	6	<> (interval, interval) ,
-	OPERATOR	15	<-> (interval, interval) FOR ORDER BY pg_catalog.interval_ops ,
-	FUNCTION	8 (interval, interval) gbt_intv_distance (internal, interval, int2, oid, internal) ,
-	FUNCTION	9 (interval, interval) gbt_intv_fetch (internal) ;
-
-
---
---
---
--- cash ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_cash_consistent(internal,money,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_distance(internal,money,int2,oid,internal)
-RETURNS float8
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_cash_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_cash_ops
-DEFAULT FOR TYPE money USING gist
-AS
-	OPERATOR	1	< ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	= ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	> ,
-	FUNCTION	1	gbt_cash_consistent (internal, money, int2, oid, internal),
-	FUNCTION	2	gbt_cash_union (internal, internal),
-	FUNCTION	3	gbt_cash_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_cash_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_cash_picksplit (internal, internal),
-	FUNCTION	7	gbt_cash_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_cash_ops USING gist ADD
-	OPERATOR	6	<> (money, money) ,
-	OPERATOR	15	<-> (money, money) FOR ORDER BY pg_catalog.money_ops ,
-	FUNCTION	8 (money, money) gbt_cash_distance (internal, money, int2, oid, internal) ,
-	FUNCTION	9 (money, money) gbt_cash_fetch (internal) ;
-
-
---
---
---
--- macaddr ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_macad_consistent(internal,macaddr,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_fetch(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_macad_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_macaddr_ops
-DEFAULT FOR TYPE macaddr USING gist
-AS
-	OPERATOR	1	< ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	= ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	> ,
-	FUNCTION	1	gbt_macad_consistent (internal, macaddr, int2, oid, internal),
-	FUNCTION	2	gbt_macad_union (internal, internal),
-	FUNCTION	3	gbt_macad_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_macad_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_macad_picksplit (internal, internal),
-	FUNCTION	7	gbt_macad_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_macaddr_ops USING gist ADD
-	OPERATOR	6	<> (macaddr, macaddr) ,
-	FUNCTION	9 (macaddr, macaddr) gbt_macad_fetch (internal);
-
-
---
---
---
--- text/ bpchar ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_text_consistent(internal,text,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bpchar_consistent(internal,bpchar,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bpchar_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_union(internal, internal)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_text_same(gbtreekey_var, gbtreekey_var, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_text_ops
-DEFAULT FOR TYPE text USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_text_consistent (internal, text, int2, oid, internal),
-	FUNCTION	2	gbt_text_union (internal, internal),
-	FUNCTION	3	gbt_text_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_text_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_text_picksplit (internal, internal),
-	FUNCTION	7	gbt_text_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_text_ops USING gist ADD
-	OPERATOR	6	<> (text, text) ,
-	FUNCTION	9 (text, text) gbt_var_fetch (internal) ;
-
-
----- Create the operator class
-CREATE OPERATOR CLASS gist_bpchar_ops
-DEFAULT FOR TYPE bpchar USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_bpchar_consistent (internal, bpchar , int2, oid, internal),
-	FUNCTION	2	gbt_text_union (internal, internal),
-	FUNCTION	3	gbt_bpchar_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_text_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_text_picksplit (internal, internal),
-	FUNCTION	7	gbt_text_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_bpchar_ops USING gist ADD
-	OPERATOR	6	<> (bpchar, bpchar) ,
-	FUNCTION	9 (bpchar, bpchar) gbt_var_fetch (internal) ;
-
---
---
--- bytea ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_bytea_consistent(internal,bytea,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_union(internal, internal)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bytea_same(gbtreekey_var, gbtreekey_var, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_bytea_ops
-DEFAULT FOR TYPE bytea USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_bytea_consistent (internal, bytea, int2, oid, internal),
-	FUNCTION	2	gbt_bytea_union (internal, internal),
-	FUNCTION	3	gbt_bytea_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_bytea_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_bytea_picksplit (internal, internal),
-	FUNCTION	7	gbt_bytea_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_bytea_ops USING gist ADD
-	OPERATOR	6	<> (bytea, bytea) ,
-	FUNCTION	9 (bytea, bytea) gbt_var_fetch (internal) ;
-
-
---
---
---
--- numeric ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_numeric_consistent(internal,numeric,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_union(internal, internal)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_numeric_same(gbtreekey_var, gbtreekey_var, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_numeric_ops
-DEFAULT FOR TYPE numeric USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_numeric_consistent (internal, numeric, int2, oid, internal),
-	FUNCTION	2	gbt_numeric_union (internal, internal),
-	FUNCTION	3	gbt_numeric_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_numeric_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_numeric_picksplit (internal, internal),
-	FUNCTION	7	gbt_numeric_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_numeric_ops USING gist ADD
-	OPERATOR	6	<> (numeric, numeric) ,
-	FUNCTION	9 (numeric, numeric) gbt_var_fetch (internal) ;
-
-
---
---
--- bit ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_bit_consistent(internal,bit,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_union(internal, internal)
-RETURNS gbtreekey_var
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_bit_same(gbtreekey_var, gbtreekey_var, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_bit_ops
-DEFAULT FOR TYPE bit USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_bit_consistent (internal, bit, int2, oid, internal),
-	FUNCTION	2	gbt_bit_union (internal, internal),
-	FUNCTION	3	gbt_bit_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_bit_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_bit_picksplit (internal, internal),
-	FUNCTION	7	gbt_bit_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_bit_ops USING gist ADD
-	OPERATOR	6	<> (bit, bit) ,
-	FUNCTION	9 (bit, bit) gbt_var_fetch (internal) ;
-
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_vbit_ops
-DEFAULT FOR TYPE varbit USING gist
-AS
-	OPERATOR	1	<  ,
-	OPERATOR	2	<= ,
-	OPERATOR	3	=  ,
-	OPERATOR	4	>= ,
-	OPERATOR	5	>  ,
-	FUNCTION	1	gbt_bit_consistent (internal, bit, int2, oid, internal),
-	FUNCTION	2	gbt_bit_union (internal, internal),
-	FUNCTION	3	gbt_bit_compress (internal),
-	FUNCTION	4	gbt_var_decompress (internal),
-	FUNCTION	5	gbt_bit_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_bit_picksplit (internal, internal),
-	FUNCTION	7	gbt_bit_same (gbtreekey_var, gbtreekey_var, internal),
-	STORAGE			gbtreekey_var;
-
-ALTER OPERATOR FAMILY gist_vbit_ops USING gist ADD
-	OPERATOR	6	<> (varbit, varbit) ,
-	FUNCTION	9 (varbit, varbit) gbt_var_fetch (internal) ;
-
-
---
---
---
--- inet/cidr ops
---
---
---
--- define the GiST support methods
-CREATE FUNCTION gbt_inet_consistent(internal,inet,int2,oid,internal)
-RETURNS bool
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_compress(internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_penalty(internal,internal,internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_picksplit(internal, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_union(internal, internal)
-RETURNS gbtreekey16
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
-CREATE FUNCTION gbt_inet_same(gbtreekey16, gbtreekey16, internal)
-RETURNS internal
-AS 'MODULE_PATHNAME'
-LANGUAGE C IMMUTABLE STRICT;
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_inet_ops
-DEFAULT FOR TYPE inet USING gist
-AS
-	OPERATOR	1	<   ,
-	OPERATOR	2	<=  ,
-	OPERATOR	3	=   ,
-	OPERATOR	4	>=  ,
-	OPERATOR	5	>   ,
-	FUNCTION	1	gbt_inet_consistent (internal, inet, int2, oid, internal),
-	FUNCTION	2	gbt_inet_union (internal, internal),
-	FUNCTION	3	gbt_inet_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_inet_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_inet_picksplit (internal, internal),
-	FUNCTION	7	gbt_inet_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_inet_ops USING gist ADD
-	OPERATOR	6	<>  (inet, inet) ;
-	-- no fetch support, the compress function is lossy
-
--- Create the operator class
-CREATE OPERATOR CLASS gist_cidr_ops
-DEFAULT FOR TYPE cidr USING gist
-AS
-	OPERATOR	1	<  (inet, inet)  ,
-	OPERATOR	2	<= (inet, inet)  ,
-	OPERATOR	3	=  (inet, inet)  ,
-	OPERATOR	4	>= (inet, inet)  ,
-	OPERATOR	5	>  (inet, inet)  ,
-	FUNCTION	1	gbt_inet_consistent (internal, inet, int2, oid, internal),
-	FUNCTION	2	gbt_inet_union (internal, internal),
-	FUNCTION	3	gbt_inet_compress (internal),
-	FUNCTION	4	gbt_decompress (internal),
-	FUNCTION	5	gbt_inet_penalty (internal, internal, internal),
-	FUNCTION	6	gbt_inet_picksplit (internal, internal),
-	FUNCTION	7	gbt_inet_same (gbtreekey16, gbtreekey16, internal),
-	STORAGE		gbtreekey16;
-
-ALTER OPERATOR FAMILY gist_cidr_ops USING gist ADD
-	OPERATOR	6	<> (inet, inet) ;
-	-- no fetch support, the compress function is lossy
diff --git a/contrib/btree_gist/btree_gist--1.5--1.6.sql b/contrib/btree_gist/btree_gist--1.5--1.6.sql
new file mode 100644
index 0000000..ef4424e
--- /dev/null
+++ b/contrib/btree_gist/btree_gist--1.5--1.6.sql
@@ -0,0 +1,99 @@
+/* contrib/btree_gist/btree_gist--1.5--1.6.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION btree_gist UPDATE TO '1.6'" to load this file. \quit
+
+-- drop btree_gist distance operators from opfamilies
+
+ALTER OPERATOR FAMILY gist_int2_ops USING gist DROP OPERATOR 15 (int2, int2);
+ALTER OPERATOR FAMILY gist_int4_ops USING gist DROP OPERATOR 15 (int4, int4);
+ALTER OPERATOR FAMILY gist_int8_ops USING gist DROP OPERATOR 15 (int8, int8);
+ALTER OPERATOR FAMILY gist_float4_ops USING gist DROP OPERATOR 15 (float4, float4);
+ALTER OPERATOR FAMILY gist_float8_ops USING gist DROP OPERATOR 15 (float8, float8);
+ALTER OPERATOR FAMILY gist_oid_ops USING gist DROP OPERATOR 15 (oid, oid);
+ALTER OPERATOR FAMILY gist_cash_ops USING gist DROP OPERATOR 15 (money, money);
+ALTER OPERATOR FAMILY gist_date_ops USING gist DROP OPERATOR 15 (date, date);
+ALTER OPERATOR FAMILY gist_time_ops USING gist DROP OPERATOR 15 (time, time);
+ALTER OPERATOR FAMILY gist_timestamp_ops USING gist DROP OPERATOR 15 (timestamp, timestamp);
+ALTER OPERATOR FAMILY gist_timestamptz_ops USING gist DROP OPERATOR 15 (timestamptz, timestamptz);
+ALTER OPERATOR FAMILY gist_interval_ops USING gist DROP OPERATOR 15 (interval, interval);
+
+-- add pg_catalog distance operators to opfamilies
+
+ALTER OPERATOR FAMILY gist_int2_ops USING gist ADD OPERATOR 15 <-> (int2, int2) FOR ORDER BY pg_catalog.integer_ops;
+ALTER OPERATOR FAMILY gist_int4_ops USING gist ADD OPERATOR 15 <-> (int4, int4) FOR ORDER BY pg_catalog.integer_ops;
+ALTER OPERATOR FAMILY gist_int8_ops USING gist ADD OPERATOR 15 <-> (int8, int8) FOR ORDER BY pg_catalog.integer_ops;
+ALTER OPERATOR FAMILY gist_float4_ops USING gist ADD OPERATOR 15 <-> (float4, float4) FOR ORDER BY pg_catalog.float_ops;
+ALTER OPERATOR FAMILY gist_float8_ops USING gist ADD OPERATOR 15 <-> (float8, float8) FOR ORDER BY pg_catalog.float_ops;
+ALTER OPERATOR FAMILY gist_oid_ops USING gist ADD OPERATOR 15 <-> (oid, oid) FOR ORDER BY pg_catalog.oid_ops;
+ALTER OPERATOR FAMILY gist_cash_ops USING gist ADD OPERATOR 15 <-> (money, money) FOR ORDER BY pg_catalog.money_ops;
+ALTER OPERATOR FAMILY gist_date_ops USING gist ADD OPERATOR 15 <-> (date, date) FOR ORDER BY pg_catalog.integer_ops;
+ALTER OPERATOR FAMILY gist_time_ops USING gist ADD OPERATOR 15 <-> (time, time) FOR ORDER BY pg_catalog.interval_ops;
+ALTER OPERATOR FAMILY gist_timestamp_ops USING gist ADD OPERATOR 15 <-> (timestamp, timestamp) FOR ORDER BY pg_catalog.interval_ops;
+ALTER OPERATOR FAMILY gist_timestamptz_ops USING gist ADD OPERATOR 15 <-> (timestamptz, timestamptz) FOR ORDER BY pg_catalog.interval_ops;
+ALTER OPERATOR FAMILY gist_interval_ops USING gist ADD OPERATOR 15 <-> (interval, interval) FOR ORDER BY pg_catalog.interval_ops;
+
+-- disable implicit pg_catalog search
+
+DO
+$$
+BEGIN
+	EXECUTE 'SET LOCAL search_path TO ' || current_schema() || ', pg_catalog';
+END
+$$;
+
+-- drop distance operators
+
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (int2, int2);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (int4, int4);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (int8, int8);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (float4, float4);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (float8, float8);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (oid, oid);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (money, money);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (date, date);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (time, time);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (timestamp, timestamp);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (timestamptz, timestamptz);
+ALTER EXTENSION btree_gist DROP OPERATOR <-> (interval, interval);
+
+DROP OPERATOR <-> (int2, int2);
+DROP OPERATOR <-> (int4, int4);
+DROP OPERATOR <-> (int8, int8);
+DROP OPERATOR <-> (float4, float4);
+DROP OPERATOR <-> (float8, float8);
+DROP OPERATOR <-> (oid, oid);
+DROP OPERATOR <-> (money, money);
+DROP OPERATOR <-> (date, date);
+DROP OPERATOR <-> (time, time);
+DROP OPERATOR <-> (timestamp, timestamp);
+DROP OPERATOR <-> (timestamptz, timestamptz);
+DROP OPERATOR <-> (interval, interval);
+
+-- drop distance functions
+
+ALTER EXTENSION btree_gist DROP FUNCTION int2_dist(int2, int2);
+ALTER EXTENSION btree_gist DROP FUNCTION int4_dist(int4, int4);
+ALTER EXTENSION btree_gist DROP FUNCTION int8_dist(int8, int8);
+ALTER EXTENSION btree_gist DROP FUNCTION float4_dist(float4, float4);
+ALTER EXTENSION btree_gist DROP FUNCTION float8_dist(float8, float8);
+ALTER EXTENSION btree_gist DROP FUNCTION oid_dist(oid, oid);
+ALTER EXTENSION btree_gist DROP FUNCTION cash_dist(money, money);
+ALTER EXTENSION btree_gist DROP FUNCTION date_dist(date, date);
+ALTER EXTENSION btree_gist DROP FUNCTION time_dist(time, time);
+ALTER EXTENSION btree_gist DROP FUNCTION ts_dist(timestamp, timestamp);
+ALTER EXTENSION btree_gist DROP FUNCTION tstz_dist(timestamptz, timestamptz);
+ALTER EXTENSION btree_gist DROP FUNCTION interval_dist(interval, interval);
+
+DROP FUNCTION int2_dist(int2, int2);
+DROP FUNCTION int4_dist(int4, int4);
+DROP FUNCTION int8_dist(int8, int8);
+DROP FUNCTION float4_dist(float4, float4);
+DROP FUNCTION float8_dist(float8, float8);
+DROP FUNCTION oid_dist(oid, oid);
+DROP FUNCTION cash_dist(money, money);
+DROP FUNCTION date_dist(date, date);
+DROP FUNCTION time_dist(time, time);
+DROP FUNCTION ts_dist(timestamp, timestamp);
+DROP FUNCTION tstz_dist(timestamptz, timestamptz);
+DROP FUNCTION interval_dist(interval, interval);
diff --git a/contrib/btree_gist/btree_gist--1.6.sql b/contrib/btree_gist/btree_gist--1.6.sql
new file mode 100644
index 0000000..8ff8eb5
--- /dev/null
+++ b/contrib/btree_gist/btree_gist--1.6.sql
@@ -0,0 +1,1615 @@
+/* contrib/btree_gist/btree_gist--1.2.sql */
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION btree_gist" to load this file. \quit
+
+CREATE FUNCTION gbtreekey4_in(cstring)
+RETURNS gbtreekey4
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey4_out(gbtreekey4)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey4 (
+	INTERNALLENGTH = 4,
+	INPUT  = gbtreekey4_in,
+	OUTPUT = gbtreekey4_out
+);
+
+CREATE FUNCTION gbtreekey8_in(cstring)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey8_out(gbtreekey8)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey8 (
+	INTERNALLENGTH = 8,
+	INPUT  = gbtreekey8_in,
+	OUTPUT = gbtreekey8_out
+);
+
+CREATE FUNCTION gbtreekey16_in(cstring)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey16_out(gbtreekey16)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey16 (
+	INTERNALLENGTH = 16,
+	INPUT  = gbtreekey16_in,
+	OUTPUT = gbtreekey16_out
+);
+
+CREATE FUNCTION gbtreekey32_in(cstring)
+RETURNS gbtreekey32
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey32_out(gbtreekey32)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey32 (
+	INTERNALLENGTH = 32,
+	INPUT  = gbtreekey32_in,
+	OUTPUT = gbtreekey32_out
+);
+
+CREATE FUNCTION gbtreekey_var_in(cstring)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME', 'gbtreekey_in'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbtreekey_var_out(gbtreekey_var)
+RETURNS cstring
+AS 'MODULE_PATHNAME', 'gbtreekey_out'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE TYPE gbtreekey_var (
+	INTERNALLENGTH = VARIABLE,
+	INPUT  = gbtreekey_var_in,
+	OUTPUT = gbtreekey_var_out,
+	STORAGE = EXTENDED
+);
+
+
+--
+--
+--
+-- oid ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_oid_consistent(internal,oid,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_distance(internal,oid,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_decompress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_var_decompress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_var_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_oid_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_oid_ops
+DEFAULT FOR TYPE oid USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_oid_consistent (internal, oid, int2, oid, internal),
+	FUNCTION	2	gbt_oid_union (internal, internal),
+	FUNCTION	3	gbt_oid_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_oid_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_oid_picksplit (internal, internal),
+	FUNCTION	7	gbt_oid_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+-- Add operators that are new in 9.1.  We do it like this, leaving them
+-- "loose" in the operator family rather than bound into the opclass, because
+-- that's the only state that can be reproduced during an upgrade from 9.0.
+ALTER OPERATOR FAMILY gist_oid_ops USING gist ADD
+	OPERATOR	6	<> (oid, oid) ,
+	OPERATOR	15	<-> (oid, oid) FOR ORDER BY pg_catalog.oid_ops ,
+	FUNCTION	8 (oid, oid) gbt_oid_distance (internal, oid, int2, oid, internal) ,
+	-- Also add support function for index-only-scans, added in 9.5.
+	FUNCTION	9 (oid, oid) gbt_oid_fetch (internal) ;
+
+
+--
+--
+--
+-- int2 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_int2_consistent(internal,int2,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_distance(internal,int2,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_union(internal, internal)
+RETURNS gbtreekey4
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int2_same(gbtreekey4, gbtreekey4, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_int2_ops
+DEFAULT FOR TYPE int2 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_int2_consistent (internal, int2, int2, oid, internal),
+	FUNCTION	2	gbt_int2_union (internal, internal),
+	FUNCTION	3	gbt_int2_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_int2_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_int2_picksplit (internal, internal),
+	FUNCTION	7	gbt_int2_same (gbtreekey4, gbtreekey4, internal),
+	STORAGE		gbtreekey4;
+
+ALTER OPERATOR FAMILY gist_int2_ops USING gist ADD
+	OPERATOR	6	<> (int2, int2) ,
+	OPERATOR	15	<-> (int2, int2) FOR ORDER BY pg_catalog.integer_ops ,
+	FUNCTION	8 (int2, int2) gbt_int2_distance (internal, int2, int2, oid, internal) ,
+	FUNCTION	9 (int2, int2) gbt_int2_fetch (internal) ;
+
+--
+--
+--
+-- int4 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_int4_consistent(internal,int4,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_distance(internal,int4,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int4_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_int4_ops
+DEFAULT FOR TYPE int4 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_int4_consistent (internal, int4, int2, oid, internal),
+	FUNCTION	2	gbt_int4_union (internal, internal),
+	FUNCTION	3	gbt_int4_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_int4_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_int4_picksplit (internal, internal),
+	FUNCTION	7	gbt_int4_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+ALTER OPERATOR FAMILY gist_int4_ops USING gist ADD
+	OPERATOR	6	<> (int4, int4) ,
+	OPERATOR	15	<-> (int4, int4) FOR ORDER BY pg_catalog.integer_ops ,
+	FUNCTION	8 (int4, int4) gbt_int4_distance (internal, int4, int2, oid, internal) ,
+	FUNCTION	9 (int4, int4) gbt_int4_fetch (internal) ;
+
+
+--
+--
+--
+-- int8 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_int8_consistent(internal,int8,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_distance(internal,int8,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_int8_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_int8_ops
+DEFAULT FOR TYPE int8 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_int8_consistent (internal, int8, int2, oid, internal),
+	FUNCTION	2	gbt_int8_union (internal, internal),
+	FUNCTION	3	gbt_int8_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_int8_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_int8_picksplit (internal, internal),
+	FUNCTION	7	gbt_int8_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_int8_ops USING gist ADD
+	OPERATOR	6	<> (int8, int8) ,
+	OPERATOR	15	<-> (int8, int8) FOR ORDER BY pg_catalog.integer_ops ,
+	FUNCTION	8 (int8, int8) gbt_int8_distance (internal, int8, int2, oid, internal) ,
+	FUNCTION	9 (int8, int8) gbt_int8_fetch (internal) ;
+
+--
+--
+--
+-- float4 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_float4_consistent(internal,float4,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_distance(internal,float4,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float4_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_float4_ops
+DEFAULT FOR TYPE float4 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_float4_consistent (internal, float4, int2, oid, internal),
+	FUNCTION	2	gbt_float4_union (internal, internal),
+	FUNCTION	3	gbt_float4_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_float4_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_float4_picksplit (internal, internal),
+	FUNCTION	7	gbt_float4_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+ALTER OPERATOR FAMILY gist_float4_ops USING gist ADD
+	OPERATOR	6	<> (float4, float4) ,
+	OPERATOR	15	<-> (float4, float4) FOR ORDER BY pg_catalog.float_ops ,
+	FUNCTION	8 (float4, float4) gbt_float4_distance (internal, float4, int2, oid, internal) ,
+	FUNCTION	9 (float4, float4) gbt_float4_fetch (internal) ;
+
+--
+--
+--
+-- float8 ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_float8_consistent(internal,float8,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_distance(internal,float8,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_float8_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_float8_ops
+DEFAULT FOR TYPE float8 USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_float8_consistent (internal, float8, int2, oid, internal),
+	FUNCTION	2	gbt_float8_union (internal, internal),
+	FUNCTION	3	gbt_float8_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_float8_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_float8_picksplit (internal, internal),
+	FUNCTION	7	gbt_float8_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_float8_ops USING gist ADD
+	OPERATOR	6	<> (float8, float8) ,
+	OPERATOR	15	<-> (float8, float8) FOR ORDER BY pg_catalog.float_ops ,
+	FUNCTION	8 (float8, float8) gbt_float8_distance (internal, float8, int2, oid, internal) ,
+	FUNCTION	9 (float8, float8) gbt_float8_fetch (internal) ;
+
+--
+--
+--
+-- timestamp ops
+--
+--
+--
+
+CREATE FUNCTION gbt_ts_consistent(internal,timestamp,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_distance(internal,timestamp,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_tstz_consistent(internal,timestamptz,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_tstz_distance(internal,timestamptz,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_tstz_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_ts_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_timestamp_ops
+DEFAULT FOR TYPE timestamp USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_ts_consistent (internal, timestamp, int2, oid, internal),
+	FUNCTION	2	gbt_ts_union (internal, internal),
+	FUNCTION	3	gbt_ts_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_ts_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_ts_picksplit (internal, internal),
+	FUNCTION	7	gbt_ts_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_timestamp_ops USING gist ADD
+	OPERATOR	6	<> (timestamp, timestamp) ,
+	OPERATOR	15	<-> (timestamp, timestamp) FOR ORDER BY pg_catalog.interval_ops ,
+	FUNCTION	8 (timestamp, timestamp) gbt_ts_distance (internal, timestamp, int2, oid, internal) ,
+	FUNCTION	9 (timestamp, timestamp) gbt_ts_fetch (internal) ;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_timestamptz_ops
+DEFAULT FOR TYPE timestamptz USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_tstz_consistent (internal, timestamptz, int2, oid, internal),
+	FUNCTION	2	gbt_ts_union (internal, internal),
+	FUNCTION	3	gbt_tstz_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_ts_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_ts_picksplit (internal, internal),
+	FUNCTION	7	gbt_ts_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_timestamptz_ops USING gist ADD
+	OPERATOR	6	<> (timestamptz, timestamptz) ,
+	OPERATOR	15	<-> (timestamptz, timestamptz) FOR ORDER BY pg_catalog.interval_ops ,
+	FUNCTION	8 (timestamptz, timestamptz) gbt_tstz_distance (internal, timestamptz, int2, oid, internal) ,
+	FUNCTION	9 (timestamptz, timestamptz) gbt_ts_fetch (internal) ;
+
+--
+--
+--
+-- time ops
+--
+--
+--
+
+CREATE FUNCTION gbt_time_consistent(internal,time,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_distance(internal,time,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_timetz_consistent(internal,timetz,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_timetz_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_time_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_time_ops
+DEFAULT FOR TYPE time USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_time_consistent (internal, time, int2, oid, internal),
+	FUNCTION	2	gbt_time_union (internal, internal),
+	FUNCTION	3	gbt_time_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_time_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_time_picksplit (internal, internal),
+	FUNCTION	7	gbt_time_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_time_ops USING gist ADD
+	OPERATOR	6	<> (time, time) ,
+	OPERATOR	15	<-> (time, time) FOR ORDER BY pg_catalog.interval_ops ,
+	FUNCTION	8 (time, time) gbt_time_distance (internal, time, int2, oid, internal) ,
+	FUNCTION	9 (time, time) gbt_time_fetch (internal) ;
+
+
+CREATE OPERATOR CLASS gist_timetz_ops
+DEFAULT FOR TYPE timetz USING gist
+AS
+	OPERATOR	1	<   ,
+	OPERATOR	2	<=  ,
+	OPERATOR	3	=   ,
+	OPERATOR	4	>=  ,
+	OPERATOR	5	>   ,
+	FUNCTION	1	gbt_timetz_consistent (internal, timetz, int2, oid, internal),
+	FUNCTION	2	gbt_time_union (internal, internal),
+	FUNCTION	3	gbt_timetz_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_time_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_time_picksplit (internal, internal),
+	FUNCTION	7	gbt_time_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_timetz_ops USING gist ADD
+	OPERATOR	6	<> (timetz, timetz) ;
+	-- no 'fetch' function, as the compress function is lossy.
+
+
+--
+--
+--
+-- date ops
+--
+--
+--
+
+CREATE FUNCTION gbt_date_consistent(internal,date,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_distance(internal,date,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_date_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_date_ops
+DEFAULT FOR TYPE date USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_date_consistent (internal, date, int2, oid, internal),
+	FUNCTION	2	gbt_date_union (internal, internal),
+	FUNCTION	3	gbt_date_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_date_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_date_picksplit (internal, internal),
+	FUNCTION	7	gbt_date_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+ALTER OPERATOR FAMILY gist_date_ops USING gist ADD
+	OPERATOR	6	<> (date, date) ,
+	OPERATOR	15	<-> (date, date) FOR ORDER BY pg_catalog.integer_ops ,
+	FUNCTION	8 (date, date) gbt_date_distance (internal, date, int2, oid, internal) ,
+	FUNCTION	9 (date, date) gbt_date_fetch (internal) ;
+
+
+--
+--
+--
+-- interval ops
+--
+--
+--
+
+CREATE FUNCTION gbt_intv_consistent(internal,interval,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_distance(internal,interval,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_decompress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_union(internal, internal)
+RETURNS gbtreekey32
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_intv_same(gbtreekey32, gbtreekey32, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_interval_ops
+DEFAULT FOR TYPE interval USING gist
+AS
+	OPERATOR	1	< ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	= ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	> ,
+	FUNCTION	1	gbt_intv_consistent (internal, interval, int2, oid, internal),
+	FUNCTION	2	gbt_intv_union (internal, internal),
+	FUNCTION	3	gbt_intv_compress (internal),
+	FUNCTION	4	gbt_intv_decompress (internal),
+	FUNCTION	5	gbt_intv_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_intv_picksplit (internal, internal),
+	FUNCTION	7	gbt_intv_same (gbtreekey32, gbtreekey32, internal),
+	STORAGE		gbtreekey32;
+
+ALTER OPERATOR FAMILY gist_interval_ops USING gist ADD
+	OPERATOR	6	<> (interval, interval) ,
+	OPERATOR	15	<-> (interval, interval) FOR ORDER BY pg_catalog.interval_ops ,
+	FUNCTION	8 (interval, interval) gbt_intv_distance (internal, interval, int2, oid, internal) ,
+	FUNCTION	9 (interval, interval) gbt_intv_fetch (internal) ;
+
+
+--
+--
+--
+-- cash ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_cash_consistent(internal,money,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_distance(internal,money,int2,oid,internal)
+RETURNS float8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_cash_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_cash_ops
+DEFAULT FOR TYPE money USING gist
+AS
+	OPERATOR	1	< ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	= ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	> ,
+	FUNCTION	1	gbt_cash_consistent (internal, money, int2, oid, internal),
+	FUNCTION	2	gbt_cash_union (internal, internal),
+	FUNCTION	3	gbt_cash_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_cash_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_cash_picksplit (internal, internal),
+	FUNCTION	7	gbt_cash_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_cash_ops USING gist ADD
+	OPERATOR	6	<> (money, money) ,
+	OPERATOR	15	<-> (money, money) FOR ORDER BY pg_catalog.money_ops ,
+	FUNCTION	8 (money, money) gbt_cash_distance (internal, money, int2, oid, internal) ,
+	FUNCTION	9 (money, money) gbt_cash_fetch (internal) ;
+
+
+--
+--
+--
+-- macaddr ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_macad_consistent(internal,macaddr,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_macaddr_ops
+DEFAULT FOR TYPE macaddr USING gist
+AS
+	OPERATOR	1	< ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	= ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	> ,
+	FUNCTION	1	gbt_macad_consistent (internal, macaddr, int2, oid, internal),
+	FUNCTION	2	gbt_macad_union (internal, internal),
+	FUNCTION	3	gbt_macad_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_macad_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_macad_picksplit (internal, internal),
+	FUNCTION	7	gbt_macad_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_macaddr_ops USING gist ADD
+	OPERATOR	6	<> (macaddr, macaddr) ,
+	FUNCTION	9 (macaddr, macaddr) gbt_macad_fetch (internal);
+
+
+--
+--
+--
+-- text/ bpchar ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_text_consistent(internal,text,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bpchar_consistent(internal,bpchar,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bpchar_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_union(internal, internal)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_text_same(gbtreekey_var, gbtreekey_var, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_text_ops
+DEFAULT FOR TYPE text USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_text_consistent (internal, text, int2, oid, internal),
+	FUNCTION	2	gbt_text_union (internal, internal),
+	FUNCTION	3	gbt_text_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_text_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_text_picksplit (internal, internal),
+	FUNCTION	7	gbt_text_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_text_ops USING gist ADD
+	OPERATOR	6	<> (text, text) ,
+	FUNCTION	9 (text, text) gbt_var_fetch (internal) ;
+
+
+---- Create the operator class
+CREATE OPERATOR CLASS gist_bpchar_ops
+DEFAULT FOR TYPE bpchar USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_bpchar_consistent (internal, bpchar , int2, oid, internal),
+	FUNCTION	2	gbt_text_union (internal, internal),
+	FUNCTION	3	gbt_bpchar_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_text_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_text_picksplit (internal, internal),
+	FUNCTION	7	gbt_text_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_bpchar_ops USING gist ADD
+	OPERATOR	6	<> (bpchar, bpchar) ,
+	FUNCTION	9 (bpchar, bpchar) gbt_var_fetch (internal) ;
+
+--
+--
+-- bytea ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_bytea_consistent(internal,bytea,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_union(internal, internal)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bytea_same(gbtreekey_var, gbtreekey_var, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_bytea_ops
+DEFAULT FOR TYPE bytea USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_bytea_consistent (internal, bytea, int2, oid, internal),
+	FUNCTION	2	gbt_bytea_union (internal, internal),
+	FUNCTION	3	gbt_bytea_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_bytea_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_bytea_picksplit (internal, internal),
+	FUNCTION	7	gbt_bytea_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_bytea_ops USING gist ADD
+	OPERATOR	6	<> (bytea, bytea) ,
+	FUNCTION	9 (bytea, bytea) gbt_var_fetch (internal) ;
+
+
+--
+--
+--
+-- numeric ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_numeric_consistent(internal,numeric,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_union(internal, internal)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_numeric_same(gbtreekey_var, gbtreekey_var, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_numeric_ops
+DEFAULT FOR TYPE numeric USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_numeric_consistent (internal, numeric, int2, oid, internal),
+	FUNCTION	2	gbt_numeric_union (internal, internal),
+	FUNCTION	3	gbt_numeric_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_numeric_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_numeric_picksplit (internal, internal),
+	FUNCTION	7	gbt_numeric_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_numeric_ops USING gist ADD
+	OPERATOR	6	<> (numeric, numeric) ,
+	FUNCTION	9 (numeric, numeric) gbt_var_fetch (internal) ;
+
+
+--
+--
+-- bit ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_bit_consistent(internal,bit,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_union(internal, internal)
+RETURNS gbtreekey_var
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_bit_same(gbtreekey_var, gbtreekey_var, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_bit_ops
+DEFAULT FOR TYPE bit USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_bit_consistent (internal, bit, int2, oid, internal),
+	FUNCTION	2	gbt_bit_union (internal, internal),
+	FUNCTION	3	gbt_bit_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_bit_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_bit_picksplit (internal, internal),
+	FUNCTION	7	gbt_bit_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_bit_ops USING gist ADD
+	OPERATOR	6	<> (bit, bit) ,
+	FUNCTION	9 (bit, bit) gbt_var_fetch (internal) ;
+
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_vbit_ops
+DEFAULT FOR TYPE varbit USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_bit_consistent (internal, bit, int2, oid, internal),
+	FUNCTION	2	gbt_bit_union (internal, internal),
+	FUNCTION	3	gbt_bit_compress (internal),
+	FUNCTION	4	gbt_var_decompress (internal),
+	FUNCTION	5	gbt_bit_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_bit_picksplit (internal, internal),
+	FUNCTION	7	gbt_bit_same (gbtreekey_var, gbtreekey_var, internal),
+	STORAGE			gbtreekey_var;
+
+ALTER OPERATOR FAMILY gist_vbit_ops USING gist ADD
+	OPERATOR	6	<> (varbit, varbit) ,
+	FUNCTION	9 (varbit, varbit) gbt_var_fetch (internal) ;
+
+
+--
+--
+--
+-- inet/cidr ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_inet_consistent(internal,inet,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_inet_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_inet_ops
+DEFAULT FOR TYPE inet USING gist
+AS
+	OPERATOR	1	<   ,
+	OPERATOR	2	<=  ,
+	OPERATOR	3	=   ,
+	OPERATOR	4	>=  ,
+	OPERATOR	5	>   ,
+	FUNCTION	1	gbt_inet_consistent (internal, inet, int2, oid, internal),
+	FUNCTION	2	gbt_inet_union (internal, internal),
+	FUNCTION	3	gbt_inet_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_inet_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_inet_picksplit (internal, internal),
+	FUNCTION	7	gbt_inet_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_inet_ops USING gist ADD
+	OPERATOR	6	<>  (inet, inet) ;
+	-- no fetch support, the compress function is lossy
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_cidr_ops
+DEFAULT FOR TYPE cidr USING gist
+AS
+	OPERATOR	1	<  (inet, inet)  ,
+	OPERATOR	2	<= (inet, inet)  ,
+	OPERATOR	3	=  (inet, inet)  ,
+	OPERATOR	4	>= (inet, inet)  ,
+	OPERATOR	5	>  (inet, inet)  ,
+	FUNCTION	1	gbt_inet_consistent (internal, inet, int2, oid, internal),
+	FUNCTION	2	gbt_inet_union (internal, internal),
+	FUNCTION	3	gbt_inet_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_inet_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_inet_picksplit (internal, internal),
+	FUNCTION	7	gbt_inet_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_cidr_ops USING gist ADD
+	OPERATOR	6	<> (inet, inet) ;
+	-- no fetch support, the compress function is lossy
+
+--
+--
+--
+-- uuid ops
+--
+--
+---- define the GiST support methods
+CREATE FUNCTION gbt_uuid_consistent(internal,uuid,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_union(internal, internal)
+RETURNS gbtreekey32
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_uuid_same(gbtreekey32, gbtreekey32, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_uuid_ops
+DEFAULT FOR TYPE uuid USING gist
+AS
+	OPERATOR	1	<   ,
+	OPERATOR	2	<=  ,
+	OPERATOR	3	=   ,
+	OPERATOR	4	>=  ,
+	OPERATOR	5	>   ,
+	FUNCTION	1	gbt_uuid_consistent (internal, uuid, int2, oid, internal),
+	FUNCTION	2	gbt_uuid_union (internal, internal),
+	FUNCTION	3	gbt_uuid_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_uuid_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_uuid_picksplit (internal, internal),
+	FUNCTION	7	gbt_uuid_same (gbtreekey32, gbtreekey32, internal),
+	STORAGE		gbtreekey32;
+
+-- These are "loose" in the opfamily for consistency with the rest of btree_gist
+ALTER OPERATOR FAMILY gist_uuid_ops USING gist ADD
+	OPERATOR	6	<>  (uuid, uuid) ,
+	FUNCTION	9 (uuid, uuid) gbt_uuid_fetch (internal) ;
+
+
+-- Add support for indexing macaddr8 columns
+
+-- define the GiST support methods
+CREATE FUNCTION gbt_macad8_consistent(internal,macaddr8,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_union(internal, internal)
+RETURNS gbtreekey16
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_macad8_same(gbtreekey16, gbtreekey16, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_macaddr8_ops
+DEFAULT FOR TYPE macaddr8 USING gist
+AS
+	OPERATOR	1	< ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	= ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	> ,
+	FUNCTION	1	gbt_macad8_consistent (internal, macaddr8, int2, oid, internal),
+	FUNCTION	2	gbt_macad8_union (internal, internal),
+	FUNCTION	3	gbt_macad8_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_macad8_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_macad8_picksplit (internal, internal),
+	FUNCTION	7	gbt_macad8_same (gbtreekey16, gbtreekey16, internal),
+	STORAGE		gbtreekey16;
+
+ALTER OPERATOR FAMILY gist_macaddr8_ops USING gist ADD
+	OPERATOR	6	<> (macaddr8, macaddr8) ,
+	FUNCTION	9 (macaddr8, macaddr8) gbt_macad8_fetch (internal);
+
+--
+--
+--
+-- enum ops
+--
+--
+--
+-- define the GiST support methods
+CREATE FUNCTION gbt_enum_consistent(internal,anyenum,int2,oid,internal)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_compress(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_fetch(internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_penalty(internal,internal,internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_picksplit(internal, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_union(internal, internal)
+RETURNS gbtreekey8
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION gbt_enum_same(gbtreekey8, gbtreekey8, internal)
+RETURNS internal
+AS 'MODULE_PATHNAME'
+LANGUAGE C IMMUTABLE STRICT;
+
+-- Create the operator class
+CREATE OPERATOR CLASS gist_enum_ops
+DEFAULT FOR TYPE anyenum USING gist
+AS
+	OPERATOR	1	<  ,
+	OPERATOR	2	<= ,
+	OPERATOR	3	=  ,
+	OPERATOR	4	>= ,
+	OPERATOR	5	>  ,
+	FUNCTION	1	gbt_enum_consistent (internal, anyenum, int2, oid, internal),
+	FUNCTION	2	gbt_enum_union (internal, internal),
+	FUNCTION	3	gbt_enum_compress (internal),
+	FUNCTION	4	gbt_decompress (internal),
+	FUNCTION	5	gbt_enum_penalty (internal, internal, internal),
+	FUNCTION	6	gbt_enum_picksplit (internal, internal),
+	FUNCTION	7	gbt_enum_same (gbtreekey8, gbtreekey8, internal),
+	STORAGE		gbtreekey8;
+
+ALTER OPERATOR FAMILY gist_enum_ops USING gist ADD
+	OPERATOR	6	<> (anyenum, anyenum) ,
+	FUNCTION	9 (anyenum, anyenum) gbt_enum_fetch (internal) ;
diff --git a/contrib/btree_gist/btree_gist.control b/contrib/btree_gist/btree_gist.control
index 81c8509..9ced3bc 100644
--- a/contrib/btree_gist/btree_gist.control
+++ b/contrib/btree_gist/btree_gist.control
@@ -1,5 +1,5 @@
 # btree_gist extension
 comment = 'support for indexing common datatypes in GiST'
-default_version = '1.5'
+default_version = '1.6'
 module_pathname = '$libdir/btree_gist'
 relocatable = true
diff --git a/contrib/btree_gist/btree_int2.c b/contrib/btree_gist/btree_int2.c
index 7674e2d..2afc343 100644
--- a/contrib/btree_gist/btree_int2.c
+++ b/contrib/btree_gist/btree_int2.c
@@ -94,20 +94,7 @@ PG_FUNCTION_INFO_V1(int2_dist);
 Datum
 int2_dist(PG_FUNCTION_ARGS)
 {
-	int16		a = PG_GETARG_INT16(0);
-	int16		b = PG_GETARG_INT16(1);
-	int16		r;
-	int16		ra;
-
-	if (pg_sub_s16_overflow(a, b, &r) ||
-		r == PG_INT16_MIN)
-		ereport(ERROR,
-				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
-				 errmsg("smallint out of range")));
-
-	ra = Abs(r);
-
-	PG_RETURN_INT16(ra);
+	return int2dist(fcinfo);
 }
 
 
diff --git a/contrib/btree_gist/btree_int4.c b/contrib/btree_gist/btree_int4.c
index 80005ab..2361ce7 100644
--- a/contrib/btree_gist/btree_int4.c
+++ b/contrib/btree_gist/btree_int4.c
@@ -95,20 +95,7 @@ PG_FUNCTION_INFO_V1(int4_dist);
 Datum
 int4_dist(PG_FUNCTION_ARGS)
 {
-	int32		a = PG_GETARG_INT32(0);
-	int32		b = PG_GETARG_INT32(1);
-	int32		r;
-	int32		ra;
-
-	if (pg_sub_s32_overflow(a, b, &r) ||
-		r == PG_INT32_MIN)
-		ereport(ERROR,
-				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
-				 errmsg("integer out of range")));
-
-	ra = Abs(r);
-
-	PG_RETURN_INT32(ra);
+	return int4dist(fcinfo);
 }
 
 
diff --git a/contrib/btree_gist/btree_int8.c b/contrib/btree_gist/btree_int8.c
index b0fd3e1..182d7c4 100644
--- a/contrib/btree_gist/btree_int8.c
+++ b/contrib/btree_gist/btree_int8.c
@@ -95,20 +95,7 @@ PG_FUNCTION_INFO_V1(int8_dist);
 Datum
 int8_dist(PG_FUNCTION_ARGS)
 {
-	int64		a = PG_GETARG_INT64(0);
-	int64		b = PG_GETARG_INT64(1);
-	int64		r;
-	int64		ra;
-
-	if (pg_sub_s64_overflow(a, b, &r) ||
-		r == PG_INT64_MIN)
-		ereport(ERROR,
-				(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
-				 errmsg("bigint out of range")));
-
-	ra = Abs(r);
-
-	PG_RETURN_INT64(ra);
+	return int8dist(fcinfo);
 }
 
 
diff --git a/contrib/btree_gist/btree_interval.c b/contrib/btree_gist/btree_interval.c
index 3a527a7..c68d48e 100644
--- a/contrib/btree_gist/btree_interval.c
+++ b/contrib/btree_gist/btree_interval.c
@@ -128,11 +128,7 @@ PG_FUNCTION_INFO_V1(interval_dist);
 Datum
 interval_dist(PG_FUNCTION_ARGS)
 {
-	Datum		diff = DirectFunctionCall2(interval_mi,
-										   PG_GETARG_DATUM(0),
-										   PG_GETARG_DATUM(1));
-
-	PG_RETURN_INTERVAL_P(abs_interval(DatumGetIntervalP(diff)));
+	return interval_distance(fcinfo);
 }
 
 
diff --git a/contrib/btree_gist/btree_oid.c b/contrib/btree_gist/btree_oid.c
index 00e7019..c702d51 100644
--- a/contrib/btree_gist/btree_oid.c
+++ b/contrib/btree_gist/btree_oid.c
@@ -100,15 +100,7 @@ PG_FUNCTION_INFO_V1(oid_dist);
 Datum
 oid_dist(PG_FUNCTION_ARGS)
 {
-	Oid			a = PG_GETARG_OID(0);
-	Oid			b = PG_GETARG_OID(1);
-	Oid			res;
-
-	if (a < b)
-		res = b - a;
-	else
-		res = a - b;
-	PG_RETURN_OID(res);
+	return oiddist(fcinfo);
 }
 
 
diff --git a/contrib/btree_gist/btree_time.c b/contrib/btree_gist/btree_time.c
index 90cf655..cfafd02 100644
--- a/contrib/btree_gist/btree_time.c
+++ b/contrib/btree_gist/btree_time.c
@@ -141,11 +141,7 @@ PG_FUNCTION_INFO_V1(time_dist);
 Datum
 time_dist(PG_FUNCTION_ARGS)
 {
-	Datum		diff = DirectFunctionCall2(time_mi_time,
-										   PG_GETARG_DATUM(0),
-										   PG_GETARG_DATUM(1));
-
-	PG_RETURN_INTERVAL_P(abs_interval(DatumGetIntervalP(diff)));
+	return time_distance(fcinfo);
 }
 
 
diff --git a/contrib/btree_gist/btree_ts.c b/contrib/btree_gist/btree_ts.c
index 49d1849..9e62f7d 100644
--- a/contrib/btree_gist/btree_ts.c
+++ b/contrib/btree_gist/btree_ts.c
@@ -146,48 +146,14 @@ PG_FUNCTION_INFO_V1(ts_dist);
 Datum
 ts_dist(PG_FUNCTION_ARGS)
 {
-	Timestamp	a = PG_GETARG_TIMESTAMP(0);
-	Timestamp	b = PG_GETARG_TIMESTAMP(1);
-	Interval   *r;
-
-	if (TIMESTAMP_NOT_FINITE(a) || TIMESTAMP_NOT_FINITE(b))
-	{
-		Interval   *p = palloc(sizeof(Interval));
-
-		p->day = INT_MAX;
-		p->month = INT_MAX;
-		p->time = PG_INT64_MAX;
-		PG_RETURN_INTERVAL_P(p);
-	}
-	else
-		r = DatumGetIntervalP(DirectFunctionCall2(timestamp_mi,
-												  PG_GETARG_DATUM(0),
-												  PG_GETARG_DATUM(1)));
-	PG_RETURN_INTERVAL_P(abs_interval(r));
+	return timestamp_distance(fcinfo);
 }
 
 PG_FUNCTION_INFO_V1(tstz_dist);
 Datum
 tstz_dist(PG_FUNCTION_ARGS)
 {
-	TimestampTz a = PG_GETARG_TIMESTAMPTZ(0);
-	TimestampTz b = PG_GETARG_TIMESTAMPTZ(1);
-	Interval   *r;
-
-	if (TIMESTAMP_NOT_FINITE(a) || TIMESTAMP_NOT_FINITE(b))
-	{
-		Interval   *p = palloc(sizeof(Interval));
-
-		p->day = INT_MAX;
-		p->month = INT_MAX;
-		p->time = PG_INT64_MAX;
-		PG_RETURN_INTERVAL_P(p);
-	}
-
-	r = DatumGetIntervalP(DirectFunctionCall2(timestamp_mi,
-											  PG_GETARG_DATUM(0),
-											  PG_GETARG_DATUM(1)));
-	PG_RETURN_INTERVAL_P(abs_interval(r));
+	return timestamptz_distance(fcinfo);
 }
 
 
diff --git a/doc/src/sgml/btree-gist.sgml b/doc/src/sgml/btree-gist.sgml
index 774442f..6eb4a18 100644
--- a/doc/src/sgml/btree-gist.sgml
+++ b/doc/src/sgml/btree-gist.sgml
@@ -96,6 +96,19 @@ INSERT 0 1
  </sect2>
 
  <sect2>
+  <title>Upgrade notes for version 1.6</title>
+
+  <para>
+   In version 1.6 <literal>btree_gist</literal> switched to using in-core
+   distance operators, and its own implementations were removed.  References to
+   these operators in <literal>btree_gist</literal> opclasses will be updated
+   automatically during the extension upgrade, but if the user has created
+   objects referencing these operators or functions, then these objects must be
+   dropped manually before updating the extension.
+  </para>
+ </sect2>
+
+ <sect2>
   <title>Authors</title>
 
   <para>
-- 
2.7.4


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^ permalink  raw  reply  [nested|flat] 6+ messages in thread

* [PATCH v4 09/12] Document the oidvector type
@ 2023-09-24 21:36  Karl O. Pinc <[email protected]>
  0 siblings, 0 replies; 6+ messages in thread

From: Karl O. Pinc @ 2023-09-24 21:36 UTC (permalink / raw)

The oidvector type is used in pg_proc.proargtypes, and perhaps
elsewhere in the catalogs.  But there is no documentation on how to
get oids out of a oidvector or otherwise manipulate the data type for
those who wish to do so.  This seems the only place where such
documentation would go.
---
 doc/src/sgml/datatype.sgml | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
index 8d32a8c9c5..91cc1e5cb0 100644
--- a/doc/src/sgml/datatype.sgml
+++ b/doc/src/sgml/datatype.sgml
@@ -4754,6 +4754,17 @@ INSERT INTO mytable VALUES(-1);  -- fails
     signed-versus-unsigned confusion if you do this.)
    </para>
 
+   <indexterm zone="datatype-oid">
+    <primary>oidvector</primary>
+   </indexterm>
+
+   <para>
+     The legacy <type>oidvector</type> type can be cast to an array of OIDs,
+     and vice versa, for examination and manipulation.
+     The resultant array of OIDs, unlike a typical array, is indexed
+     zero-relative.
+   </para>
+
    <para>
     The OID alias types have no operations of their own except
     for specialized input and output routines.  These routines are able
-- 
2.30.2


--MP_/OOXZvOwbpccKfGOtE9/SwX6
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^ permalink  raw  reply  [nested|flat] 6+ messages in thread

* Re: RFC: Packing the buffer lookup table
@ 2025-01-31 17:22  James Hunter <[email protected]>
  0 siblings, 1 reply; 6+ messages in thread

From: James Hunter @ 2025-01-31 17:22 UTC (permalink / raw)
  To: Matthias van de Meent <[email protected]>; +Cc: PostgreSQL Hackers <[email protected]>; Andres Freund <[email protected]>

On Wed, Jan 29, 2025 at 11:49 PM Matthias van de Meent
<[email protected]> wrote:
>
> Hi,
>
> Some time ago I noticed that every buffer table entry is quite large at 40 bytes (+8): 16 bytes of HASHELEMENT header (of which the last 4 bytes are padding), 20 bytes of BufferTag, and 4 bytes for the offset into the shared buffers array, with generally 8 more bytes used for the bucket pointers. (32-bit systems: 32 (+4) bytes)
>
> Does anyone know why we must have the buffer tag in the buffer table?
> It seems to me we can follow the offset pointer into the shared BufferDesc array whenever we find out we need to compare the tags (as opposed to just the hash, which is stored and present in HASHELEMENT). If we decide to just follow the pointer, we can immediately shave 16 bytes (40%) off the lookup table's per-element size, or 24 if we pack the 4-byte shared buffer offset into the unused bytes in HASHELEMENT, reducing the memory usage of that hash table by ~50%: ...

So every buffer table entry is 40 bytes, and every buffer itself is 8
KB. Also, every BufferDesc is padded to 64 bytes (on 64-bit systems).
So buffer table entry is < 0.5% of total buffer space.

I assume this means that the benefit of your patch doesn't come from
memory savings, but maybe from spatial locality? As in, saving 0.5% of
memory doesn't seem like a huge win by itelf, but maybe the hash table
will see fewer cache misses, since the entries are smaller, so they'll
be packed closer together. Now you can fit 2.7 hash entries on a cache
line, instead of 1.6.

Except, to check the buffer tag itself, now you have to dereference
the offset pointer into the shared BufferDesc array. And every
BufferDesc is padded to 64 bytes (on 64-bit systems), a cache line.
So, now, instead of having the buffer tag adjacent to the hash entry,
you have a memory stall.

If the buffer tags match (i.e., no collision), this is still a
possible win, because you'd have to load the BufferDesc anyway (since
this is the buffer you're looking for).

> Does anyone have an idea on how to best benchmark this kind of patch, apart from "running pgbench"? Other ideas on how to improve this? Specific concerns?

What's the expected advantage of reducing the buffer table's entry
size? Better CPU cache usage when there's no collision, but worse in
the less-likely case where there is a collision?

What I mean is, regarding benchmarks: what's the best case scenario
for this kind of patch, and what sort of performance difference would
you expect to see?

Thanks,
James






^ permalink  raw  reply  [nested|flat] 6+ messages in thread

* Re: RFC: Packing the buffer lookup table
@ 2025-02-04 17:46  Matthias van de Meent <[email protected]>
  parent: James Hunter <[email protected]>
  0 siblings, 0 replies; 6+ messages in thread

From: Matthias van de Meent @ 2025-02-04 17:46 UTC (permalink / raw)
  To: James Hunter <[email protected]>; +Cc: PostgreSQL Hackers <[email protected]>; Andres Freund <[email protected]>

On Fri, 31 Jan 2025 at 18:23, James Hunter <[email protected]> wrote:
>
> On Wed, Jan 29, 2025 at 11:49 PM Matthias van de Meent
> <[email protected]> wrote:
> >
> > Hi,
> >
> > Some time ago I noticed that every buffer table entry is quite large at 40 bytes (+8): 16 bytes of HASHELEMENT header (of which the last 4 bytes are padding), 20 bytes of BufferTag, and 4 bytes for the offset into the shared buffers array, with generally 8 more bytes used for the bucket pointers. (32-bit systems: 32 (+4) bytes)
> >
> > Does anyone know why we must have the buffer tag in the buffer table?
> > It seems to me we can follow the offset pointer into the shared BufferDesc array whenever we find out we need to compare the tags (as opposed to just the hash, which is stored and present in HASHELEMENT). If we decide to just follow the pointer, we can immediately shave 16 bytes (40%) off the lookup table's per-element size, or 24 if we pack the 4-byte shared buffer offset into the unused bytes in HASHELEMENT, reducing the memory usage of that hash table by ~50%: ...
>
> So every buffer table entry is 40 bytes, and every buffer itself is 8
> KB. Also, every BufferDesc is padded to 64 bytes (on 64-bit systems).
> So buffer table entry is < 0.5% of total buffer space.

Correct. But note that most buffers generally aren't all being
accessed, and thus aren't (fully) present in CPU caches.

> I assume this means that the benefit of your patch doesn't come from
> memory savings, but maybe from spatial locality? As in, saving 0.5% of
> memory doesn't seem like a huge win by itelf, but maybe the hash table
> will see fewer cache misses, since the entries are smaller, so they'll
> be packed closer together. Now you can fit 2.7 hash entries on a cache
> line, instead of 1.6.

Yes - though it's actually 4 entries per cache line: While the buckets
array uses space proportional to the total number of entries, we won't
access that bucket array again once we've used it, so any subsequent
memory accesses are 2.5x more likely to hit a cache line, compared to
the chances of what's currently on master.

> Except, to check the buffer tag itself, now you have to dereference
> the offset pointer into the shared BufferDesc array. And every
> BufferDesc is padded to 64 bytes (on 64-bit systems), a cache line.
> So, now, instead of having the buffer tag adjacent to the hash entry,
> you have a memory stall.

Correct - though that only happens for hits and hash collisions. Hash
collisions are considered rare (assuming linear hashing, it'd be
1/2^16), and for hits you would load that buffer tag anyway, so the
cost is a potential cache miss _while holding the buftable lock_, be
it in shared or exclusive mode (most likely: shared, as we don't do
blind updates to the hash table).

> If the buffer tags match (i.e., no collision), this is still a
> possible win, because you'd have to load the BufferDesc anyway (since
> this is the buffer you're looking for).

Exactly.

> > Does anyone have an idea on how to best benchmark this kind of patch, apart from "running pgbench"? Other ideas on how to improve this? Specific concerns?
>
> What's the expected advantage of reducing the buffer table's entry
> size? Better CPU cache usage when there's no collision, but worse in
> the less-likely case where there is a collision?

Yes, plus a reduced overhead of defining a large shared buffers. Over
in [0] people discuss changing the size of shared_buffers on-the-fly.
When we have that capability, the overhead of allocating large shared
buffers can become a meaningful fraction of total shared memory in
reduced-shared_buffers systems: Currently, we have ±144
bytes/shared_buffers entry in shared_memory allocations, excluding the
page itself. This means that if someone wants to be able to scale
their buffers with a factor 1:100 min:max, the size of those shared
buffers' metadata allocations is 1.7x as large as the size of the
buffers in its smallest configuration. [^1]

While it is currently definitely not a reasonable expectation to
expect 100x scaling, I think reducing this overhead factor is going to
be very useful in the long run. See also [2], where cache misses in
dynahash are probably near 25% of the total workload - by reducing the
size of these structs we can increase the amount of data we can fit in
the same amount of buffers, thus increasing performance for some
cache-size limited workloads that hit the lookup tables.

> What I mean is, regarding benchmarks: what's the best case scenario
> for this kind of patch, and what sort of performance difference would
> you expect to see?

I assume that for the provided patch:
 - there will be no (or minimal) regressions, and improved performance
when the buffer mapping table now fits in l2/l3 caches (if it
previously didn't).
 - there can be some regressions if the additional offset calculation
is performance-critical.
 - there can be some regressions if an additional cache miss during
redirection while holding the lock is performance-critical.

Kind regards,

Matthias van de Meent
Neon (https://neon.tech)

[0] https://www.postgresql.org/message-id/flat/CA%2BTgmoaGCFPhMjz7veJOeef30%3DKdpOxgywcLwNbr-Gny-mXwcg%4...

[^1] I make the assumption that when we resize the storage of pages of
shared_buffers we don't also resize the buffer mapping table and the
bufferdesc array; as blocking processes from accessing page data based
on buffer descriptors' state is easier than totally rewiring all
systems that currently assume constant-size bufferdescs. With effort
it might be possible to resize these, but I don't see an easy path
forward for that, while the 8KB page of every shared_buffers slot is
relatively easier to remove from memory.

[2] https://www.postgresql.org/message-id/flat/CA%2BCZih5R_ZMjcuMHM3Ub10vTNDLEBjW8VsO3h-y2WKb%3DoK4fWw%4...






^ permalink  raw  reply  [nested|flat] 6+ messages in thread


end of thread, other threads:[~2025-02-04 17:46 UTC | newest]

Thread overview: 6+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2018-09-27 02:15 [PATCH 2/5] Add conditional lock feature to dshash Kyotaro Horiguchi <[email protected]>
2018-11-30 11:56 [PATCH 6/7] Remove distance operators from btree_gist Nikita Glukhov <[email protected]>
2019-01-11 12:51 [PATCH 6/7] Remove distance operators from btree_gist Nikita Glukhov <[email protected]>
2023-09-24 21:36 [PATCH v4 09/12] Document the oidvector type Karl O. Pinc <[email protected]>
2025-01-31 17:22 Re: RFC: Packing the buffer lookup table James Hunter <[email protected]>
2025-02-04 17:46 ` Re: RFC: Packing the buffer lookup table Matthias van de Meent <[email protected]>

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