Make /contrib install/uninstall script consistent:

	remove transactions
	use create or replace function
	make formatting consistent
	set search patch on first line

Add documentation on modifying *.sql to set the search patch, and
mention that major upgrades should still run the installation scripts.

Some of these issues were spotted by Tom today.

1 files changed, 137 insertions, 137 deletions

diff --git a/contrib/btree_gist/btree_gist.sql.in b/contrib/btree_gist/btree_gist.sql.in
index 25b79e6c6b2..2a463f10583 100644
--- a/contrib/btree_gist/btree_gist.sql.in
+++ b/contrib/btree_gist/btree_gist.sql.in
@@ -1,85 +1,85 @@
 -- Adjust this setting to control where the objects get created.
 SET search_path = public;
 
-CREATE FUNCTION gbtreekey4_in(cstring)
+CREATE OR REPLACE FUNCTION gbtreekey4_in(cstring)
 RETURNS gbtreekey4
 AS 'MODULE_PATHNAME', 'gbtreekey_in'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbtreekey4_out(gbtreekey4)
+CREATE OR REPLACE 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
+	INTERNALLENGTH = 4,
+	INPUT  = gbtreekey4_in,
+	OUTPUT = gbtreekey4_out
 );
 
-CREATE FUNCTION gbtreekey8_in(cstring)
+CREATE OR REPLACE FUNCTION gbtreekey8_in(cstring)
 RETURNS gbtreekey8
 AS 'MODULE_PATHNAME', 'gbtreekey_in'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbtreekey8_out(gbtreekey8)
+CREATE OR REPLACE 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
+	INTERNALLENGTH = 8,
+	INPUT  = gbtreekey8_in,
+	OUTPUT = gbtreekey8_out
 );
 
-CREATE FUNCTION gbtreekey16_in(cstring)
+CREATE OR REPLACE FUNCTION gbtreekey16_in(cstring)
 RETURNS gbtreekey16
 AS 'MODULE_PATHNAME', 'gbtreekey_in'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbtreekey16_out(gbtreekey16)
+CREATE OR REPLACE 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
+	INTERNALLENGTH = 16,
+	INPUT  = gbtreekey16_in,
+	OUTPUT = gbtreekey16_out
 );
 
-CREATE FUNCTION gbtreekey32_in(cstring)
+CREATE OR REPLACE FUNCTION gbtreekey32_in(cstring)
 RETURNS gbtreekey32
 AS 'MODULE_PATHNAME', 'gbtreekey_in'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbtreekey32_out(gbtreekey32)
+CREATE OR REPLACE 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
+	INTERNALLENGTH = 32,
+	INPUT  = gbtreekey32_in,
+	OUTPUT = gbtreekey32_out
 );
 
-CREATE FUNCTION gbtreekey_var_in(cstring)
+CREATE OR REPLACE FUNCTION gbtreekey_var_in(cstring)
 RETURNS gbtreekey_var
 AS 'MODULE_PATHNAME', 'gbtreekey_in'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbtreekey_var_out(gbtreekey_var)
+CREATE OR REPLACE 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
+	INTERNALLENGTH = VARIABLE,
+	INPUT  = gbtreekey_var_in,
+	OUTPUT = gbtreekey_var_out,
+	STORAGE = EXTENDED
 );
 
 
@@ -92,42 +92,42 @@ STORAGE = EXTENDED
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_oid_consistent(internal,oid,int2)
+CREATE OR REPLACE FUNCTION gbt_oid_consistent(internal,oid,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_oid_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_oid_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_decompress(internal)
+CREATE OR REPLACE FUNCTION gbt_decompress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_var_decompress(internal)
+CREATE OR REPLACE FUNCTION gbt_var_decompress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_oid_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_oid_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_oid_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_oid_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_oid_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_oid_union(bytea, internal)
 RETURNS gbtreekey8
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_oid_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_oid_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -159,32 +159,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_int2_consistent(internal,int2,int2)
+CREATE OR REPLACE FUNCTION gbt_int2_consistent(internal,int2,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int2_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_int2_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int2_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_int2_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_int2_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_int2_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int2_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_int2_union(bytea, internal)
 RETURNS gbtreekey4
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int2_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_int2_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -215,32 +215,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_int4_consistent(internal,int4,int2)
+CREATE OR REPLACE FUNCTION gbt_int4_consistent(internal,int4,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int4_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_int4_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int4_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_int4_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_int4_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_int4_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int4_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_int4_union(bytea, internal)
 RETURNS gbtreekey8
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int4_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_int4_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -271,32 +271,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_int8_consistent(internal,int8,int2)
+CREATE OR REPLACE FUNCTION gbt_int8_consistent(internal,int8,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int8_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_int8_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int8_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_int8_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_int8_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_int8_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int8_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_int8_union(bytea, internal)
 RETURNS gbtreekey16
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_int8_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_int8_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -328,32 +328,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_float4_consistent(internal,float4,int2)
+CREATE OR REPLACE FUNCTION gbt_float4_consistent(internal,float4,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_float4_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_float4_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_float4_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_float4_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_float4_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_float4_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_float4_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_float4_union(bytea, internal)
 RETURNS gbtreekey8
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_float4_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_float4_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -387,32 +387,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_float8_consistent(internal,float8,int2)
+CREATE OR REPLACE FUNCTION gbt_float8_consistent(internal,float8,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_float8_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_float8_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_float8_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_float8_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_float8_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_float8_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_float8_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_float8_union(bytea, internal)
 RETURNS gbtreekey16
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_float8_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_float8_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -444,42 +444,42 @@ AS
 --
 --
 
-CREATE FUNCTION gbt_ts_consistent(internal,timestamp,int2)
+CREATE OR REPLACE FUNCTION gbt_ts_consistent(internal,timestamp,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_tstz_consistent(internal,timestamptz,int2)
+CREATE OR REPLACE FUNCTION gbt_tstz_consistent(internal,timestamptz,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
       
-CREATE FUNCTION gbt_ts_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_ts_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_tstz_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_tstz_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_ts_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_ts_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
    
-CREATE FUNCTION gbt_ts_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_ts_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
       
-CREATE FUNCTION gbt_ts_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_ts_union(bytea, internal)
 RETURNS gbtreekey16
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_ts_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_ts_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -530,42 +530,42 @@ AS
 --
 --
 
-CREATE FUNCTION gbt_time_consistent(internal,time,int2)
+CREATE OR REPLACE FUNCTION gbt_time_consistent(internal,time,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_timetz_consistent(internal,timetz,int2)
+CREATE OR REPLACE FUNCTION gbt_timetz_consistent(internal,timetz,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_time_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_time_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_timetz_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_timetz_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_time_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_time_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
    
-CREATE FUNCTION gbt_time_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_time_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
       
-CREATE FUNCTION gbt_time_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_time_union(bytea, internal)
 RETURNS gbtreekey16
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_time_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_time_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -614,32 +614,32 @@ AS
 --
 --
 
-CREATE FUNCTION gbt_date_consistent(internal,date,int2)
+CREATE OR REPLACE FUNCTION gbt_date_consistent(internal,date,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_date_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_date_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_date_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_date_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
    
-CREATE FUNCTION gbt_date_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_date_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
       
-CREATE FUNCTION gbt_date_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_date_union(bytea, internal)
 RETURNS gbtreekey8
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_date_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_date_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -671,37 +671,37 @@ AS
 --
 --
 
-CREATE FUNCTION gbt_intv_consistent(internal,interval,int2)
+CREATE OR REPLACE FUNCTION gbt_intv_consistent(internal,interval,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_intv_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_intv_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_intv_decompress(internal)
+CREATE OR REPLACE FUNCTION gbt_intv_decompress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_intv_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_intv_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
    
-CREATE FUNCTION gbt_intv_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_intv_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
       
-CREATE FUNCTION gbt_intv_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_intv_union(bytea, internal)
 RETURNS gbtreekey32
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_intv_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_intv_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -732,32 +732,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_cash_consistent(internal,money,int2)
+CREATE OR REPLACE FUNCTION gbt_cash_consistent(internal,money,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_cash_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_cash_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_cash_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_cash_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_cash_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_cash_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_cash_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_cash_union(bytea, internal)
 RETURNS gbtreekey8
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_cash_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_cash_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -788,32 +788,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_macad_consistent(internal,macaddr,int2)
+CREATE OR REPLACE FUNCTION gbt_macad_consistent(internal,macaddr,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_macad_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_macad_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_macad_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_macad_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_macad_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_macad_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_macad_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_macad_union(bytea, internal)
 RETURNS gbtreekey16
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_macad_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_macad_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -846,42 +846,42 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_text_consistent(internal,text,int2)
+CREATE OR REPLACE FUNCTION gbt_text_consistent(internal,text,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bpchar_consistent(internal,bpchar,int2)
+CREATE OR REPLACE FUNCTION gbt_bpchar_consistent(internal,bpchar,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_text_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_text_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bpchar_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_bpchar_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_text_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_text_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_text_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_text_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_text_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_text_union(bytea, internal)
 RETURNS gbtreekey_var
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_text_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_text_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -932,32 +932,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_bytea_consistent(internal,bytea,int2)
+CREATE OR REPLACE FUNCTION gbt_bytea_consistent(internal,bytea,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bytea_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_bytea_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bytea_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_bytea_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_bytea_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_bytea_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bytea_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_bytea_union(bytea, internal)
 RETURNS gbtreekey_var
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bytea_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_bytea_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -989,32 +989,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_numeric_consistent(internal,numeric,int2)
+CREATE OR REPLACE FUNCTION gbt_numeric_consistent(internal,numeric,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_numeric_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_numeric_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_numeric_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_numeric_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_numeric_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_numeric_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_numeric_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_numeric_union(bytea, internal)
 RETURNS gbtreekey_var
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_numeric_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_numeric_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -1044,32 +1044,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_bit_consistent(internal,bit,int2)
+CREATE OR REPLACE FUNCTION gbt_bit_consistent(internal,bit,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bit_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_bit_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bit_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_bit_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_bit_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_bit_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bit_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_bit_union(bytea, internal)
 RETURNS gbtreekey_var
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_bit_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_bit_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
@@ -1121,32 +1121,32 @@ AS
 --
 --
 -- define the GiST support methods
-CREATE FUNCTION gbt_inet_consistent(internal,inet,int2)
+CREATE OR REPLACE FUNCTION gbt_inet_consistent(internal,inet,int2)
 RETURNS bool
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_inet_compress(internal)
+CREATE OR REPLACE FUNCTION gbt_inet_compress(internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_inet_penalty(internal,internal,internal)
+CREATE OR REPLACE FUNCTION gbt_inet_penalty(internal,internal,internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE STRICT;
 
-CREATE FUNCTION gbt_inet_picksplit(internal, internal)
+CREATE OR REPLACE FUNCTION gbt_inet_picksplit(internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_inet_union(bytea, internal)
+CREATE OR REPLACE FUNCTION gbt_inet_union(bytea, internal)
 RETURNS gbtreekey16
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
-CREATE FUNCTION gbt_inet_same(internal, internal, internal)
+CREATE OR REPLACE FUNCTION gbt_inet_same(internal, internal, internal)
 RETURNS internal
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;