Mark vatin type as collatable

Otherwise, since it is a type based on text, users could receive an
error like

> ERROR: could not determine which collation to use for string comparison

when running VACUUM ANALYZE, for instance.

Makefile

@@ -2,7 +2,8 @@ MODULE_big = vat
 OBJS = vatin.o es.o
 
 EXTENSION = vat
-DATA = vat--0.0.sql
+DATA = vat--0.0.sql \
+       vat--0.0--0.1.sql
 PGFILEDESC = "vat - data type for VAT identification numbers"
 
 REGRESS = vat

debian/changelog

@@ -1,4 +1,10 @@
-vat (0.2-3) bookworm; urgency=medium
+vat (0.3-1) bookworm; urgency=medium
+
+  * Mark the type as collatable.
+
+ -- jordi fita mas <jordi@tandem.blog>  Mon, 03 Jul 2023 17:44:51 +0002
+
+vat (0.2-1) bookworm; urgency=medium
 
   * Fix CIF computation for CIF ending with 0.
 

vat--0.0--0.1.sql

@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2023 jordi fita mas <jfita@peritasoft.com>
+ *
+ * SPDX-License-Identifier: PostgreSQL
+ */
+
+-- complain if script is sources in psql, rather than via CREATE EXTENSION
+\echo Use "ALTER EXTENSION vat UPDATE TO '0.1'" to load this file. \quit
+
+-- mark the type as collatable
+UPDATE pg_catalog.pg_type SET typcollation = 100
+WHERE oid = 'vatin'::pg_catalog.regtype;
+
+UPDATE pg_catalog.pg_attribute SET attcollation = 100
+WHERE atttypid = 'vatin'::pg_catalog.regtype;

vat.control

@@ -1,5 +1,5 @@
 comment = 'data type for VAT registration numbers'
-default_version = '0.0'
+default_version = '0.1'
 module_pathname = '$libdir/vat'
 relocatable = true
 superuser = false