Keep all old extension install scripts around

We need them to test upgrades.

.gitignore

@@ -1,4 +1,3 @@
 *.o
 *.so
 /results/
-/*--*.sql

Makefile

@@ -1,13 +1,10 @@
 PG_CONFIG = pg_config
 PKG_CONFIG = pkg-config
 
-extension_version = 1
-
 EXTENSION = uri
 MODULE_big = uri
 OBJS = uri.o
-DATA = uri--0--1.sql
+DATA = uri--0.sql uri--1.sql uri--0--1.sql
-DATA_built = uri--$(extension_version).sql
 
 ifeq (no,$(shell $(PKG_CONFIG) liburiparser || echo no))
 $(warning liburiparser not registed with pkg-config, build might fail)
@@ -21,6 +18,3 @@ REGRESS_OPTS = --inputdir=test
 
 PGXS := $(shell $(PG_CONFIG) --pgxs)
 include $(PGXS)
-
-uri--$(extension_version).sql: uri.sql
-	cat $^ >$@

uri--0.sql

@@ -0,0 +1,202 @@
+SET client_min_messages = warning;
+
+
+CREATE TYPE uri;
+
+CREATE FUNCTION uri_in(cstring) RETURNS uri
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_out(uri) RETURNS cstring
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE TYPE uri (
+    INTERNALLENGTH = -1,
+    INPUT = uri_in,
+    OUTPUT = uri_out
+);
+
+
+CREATE CAST (uri AS text) WITH INOUT AS ASSIGNMENT;
+CREATE CAST (text AS uri) WITH INOUT AS ASSIGNMENT;
+
+
+CREATE FUNCTION uri_scheme(uri) RETURNS text
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_userinfo(uri) RETURNS text
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_host(uri) RETURNS text
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_host_inet(uri) RETURNS inet
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_port(uri) RETURNS integer
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_query(uri) RETURNS text
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_fragment(uri) RETURNS text
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_path(uri) RETURNS text
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_path_array(uri) RETURNS text[]
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+
+CREATE FUNCTION uri_normalize(uri) RETURNS uri
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+
+CREATE FUNCTION uri_lt(uri, uri) RETURNS boolean
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_le(uri, uri) RETURNS boolean
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_eq(uri, uri) RETURNS boolean
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_ne(uri, uri) RETURNS boolean
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_ge(uri, uri) RETURNS boolean
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_gt(uri, uri) RETURNS boolean
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE FUNCTION uri_cmp(uri, uri) RETURNS integer
+    IMMUTABLE
+    STRICT
+    LANGUAGE C
+    AS '$libdir/uri';
+
+CREATE OPERATOR < (
+    LEFTARG = uri,
+    RIGHTARG = uri,
+    COMMUTATOR = >,
+    NEGATOR = >=,
+    RESTRICT = scalarltsel,
+    JOIN = scalarltjoinsel,
+    PROCEDURE = uri_lt
+);
+
+CREATE OPERATOR <= (
+    LEFTARG = uri,
+    RIGHTARG = uri,
+    COMMUTATOR = >=,
+    NEGATOR = >,
+    RESTRICT = scalarltsel,
+    JOIN = scalarltjoinsel,
+    PROCEDURE = uri_le
+);
+
+CREATE OPERATOR = (
+    LEFTARG = uri,
+    RIGHTARG = uri,
+    COMMUTATOR = =,
+    NEGATOR = <>,
+    RESTRICT = eqsel,
+    JOIN = eqjoinsel,
+    HASHES,
+    MERGES,
+    PROCEDURE = uri_eq
+);
+
+CREATE OPERATOR <> (
+    LEFTARG = uri,
+    RIGHTARG = uri,
+    COMMUTATOR = <>,
+    NEGATOR = =,
+    RESTRICT = neqsel,
+    JOIN = neqjoinsel,
+    PROCEDURE = uri_ne
+);
+
+CREATE OPERATOR >= (
+    LEFTARG = uri,
+    RIGHTARG = uri,
+    COMMUTATOR = <=,
+    NEGATOR = <,
+    RESTRICT = scalargtsel,
+    JOIN = scalargtjoinsel,
+    PROCEDURE = uri_ge
+);
+
+CREATE OPERATOR > (
+    LEFTARG = uri,
+    RIGHTARG = uri,
+    COMMUTATOR = <,
+    NEGATOR = <=,
+    RESTRICT = scalargtsel,
+    JOIN = scalargtjoinsel,
+    PROCEDURE = uri_gt
+);
+
+CREATE OPERATOR CLASS uri_ops
+    DEFAULT FOR TYPE uri USING btree AS
+        OPERATOR        1       < ,
+        OPERATOR        2       <= ,
+        OPERATOR        3       = ,
+        OPERATOR        4       >= ,
+        OPERATOR        5       > ,
+        FUNCTION        1       uri_cmp(uri, uri);