add Id to Filters

db/zm_update-1.31.3.sql

@@ -116,3 +116,21 @@ ALTER TABLE Logs MODIFY Message TEXT NOT NULL;
 
 ALTER TABLE Config MODIFY DefaultValue TEXT;
 
+
+-- 
+-- Add an Id column and make it the primary key of the Filters table
+--
+SET @s = (SELECT IF(
+  (SELECT COUNT(*)
+  FROM INFORMATION_SCHEMA.COLUMNS
+  WHERE table_name = 'Filters'
+  AND table_schema = DATABASE()
+  AND column_name = 'Id'
+  ) > 0,
+"SELECT 'Column Id exists in Filters'",
+"ALTER TABLE `Filters` DROP PRIMARY KEY, ADD `Id` int(10) unsigned NOT NULL auto_increment PRIMARY KEY FIRST, ADD KEY `Name` (`Name`);"
+));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;
+