Move the new function and catalog attributes to a update script

Makefile

@@ -9,7 +9,7 @@ OBJS = \
 PGFILEDESC = "pg_ivm - incremental view maintenance on PostgreSQL"
 
 EXTENSION = pg_ivm
-DATA = pg_ivm--1.0.sql
+DATA = pg_ivm--1.0.sql pg_ivm--1.0--1.1.sql
 
 REGRESS = pg_ivm create_immv refresh_immv
 

pg_ivm--1.0--1.1.sql

@@ -0,0 +1,11 @@
+-- catalog
+
+ALTER TABLE pg_catalog.pg_ivm_immv ADD COLUMN ispopulated bool NOT NULL;
+
+-- functions
+
+CREATE FUNCTION refresh_immv(text, bool)
+RETURNS bigint
+STRICT
+AS 'MODULE_PATHNAME', 'refresh_immv'
+LANGUAGE C;

pg_ivm--1.0.sql

@@ -4,7 +4,6 @@ CREATE SCHEMA __pg_ivm__;
 
 CREATE TABLE __pg_ivm__.pg_ivm_immv(
   immvrelid regclass NOT NULL,
-  ispopulated bool NOT NULL,
   viewdef text NOT NULL,
 
   CONSTRAINT pg_ivm_immv_pkey PRIMARY KEY (immvrelid)
@@ -24,12 +23,6 @@ STRICT
 AS 'MODULE_PATHNAME', 'create_immv'
 LANGUAGE C;
 
-CREATE FUNCTION refresh_immv(text, bool)
-RETURNS bigint 
-STRICT
-AS 'MODULE_PATHNAME', 'refresh_immv'
-LANGUAGE C;
-
 -- trigger functions
 
 CREATE FUNCTION "IVM_immediate_before"()

pg_ivm.control

@@ -1,6 +1,6 @@
 # incremental view maintenance extension_
 comment = 'incremental view maintenance on PostgreSQL'
-default_version = '1.0'
+default_version = '1.1'
 module_pathname = '$libdir/pg_ivm'
 relocatable = false 
 schema = pg_catalog