task: increase length of michel_catalog.code field to 5 characters.

Part of #1277

Author: php-coder

src/main/resources/liquibase/version/0.4.3.xml

@@ -9,5 +9,6 @@
 	<include file="0.4.3/2020-03-08--add_alt_price_to_series_sales_import_parsed_data.xml" relativeToChangelogFile="true" />
 	<include file="0.4.3/2020-03-11--cleanup_togglz_features.xml" relativeToChangelogFile="true" />
 	<include file="0.4.3/2020-03-11--fix-nullable-series_import_requests-url.xml" relativeToChangelogFile="true" />
+	<include file="0.4.3/2020-03-12--michel_catalog_code_length.xml" relativeToChangelogFile="true" />
 
 </databaseChangeLog>

src/main/resources/liquibase/version/0.4.3/2020-03-12--michel_catalog_code_length.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+	xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+		http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.1.xsd">
+	
+	<changeSet id="increase-length-of-michel_catalog-code-field" author="php-coder" context="scheme">
+		
+		<modifyDataType tableName="michel_catalog"
+			columnName="code"
+			newDataType="VARCHAR(5)" />
+
+		<!--
+			modifyDataType loses NOT NULL property on MySQL:
+			http://forum.liquibase.org/topic/warning-of-losing-primary-key-autoincrement-for-mysql
+			In order to fix that, we patch the SQL query to specify NOT NULL again.
+		-->
+		<modifySql dbms="mysql">
+			<append value=" NOT NULL" />
+		</modifySql>
+		
+	</changeSet>
+	
+</databaseChangeLog>