chore(DB): import pending SQL update file

Referenced commit(s): bfcc3c6f87

data/sql/updates/db_world/2021_02_05_04.sql

@@ -0,0 +1,38 @@
+-- DB update 2021_02_05_03 -> 2021_02_05_04
+DROP PROCEDURE IF EXISTS `updateDb`;
+DELIMITER //
+CREATE PROCEDURE updateDb ()
+proc:BEGIN DECLARE OK VARCHAR(100) DEFAULT 'FALSE';
+SELECT COUNT(*) INTO @COLEXISTS
+FROM information_schema.COLUMNS
+WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'version_db_world' AND COLUMN_NAME = '2021_02_05_03';
+IF @COLEXISTS = 0 THEN LEAVE proc; END IF;
+START TRANSACTION;
+ALTER TABLE version_db_world CHANGE COLUMN 2021_02_05_03 2021_02_05_04 bit;
+SELECT sql_rev INTO OK FROM version_db_world WHERE sql_rev = '1612059439455457600'; IF OK <> 'FALSE' THEN LEAVE proc; END IF;
+--
+-- START UPDATING QUERIES
+--
+
+INSERT INTO `version_db_world` (`sql_rev`) VALUES ('1612059439455457600');
+
+-- SPELL_SCHOOL_FIRE
+UPDATE `creature_template` SET `spell_school_immune_mask` = 4 WHERE `entry` IN (17267,15438);
+
+-- SPELL_SCHOOL_NATURE
+UPDATE `creature_template` SET `spell_school_immune_mask` = 8 WHERE `entry` IN (30258,31463,15352);
+
+-- SPELL_SCHOOL_FROST
+UPDATE `creature_template` SET `spell_school_immune_mask` = 16 WHERE `entry` IN (37994,510,17167);
+
+-- School ALL
+UPDATE `creature_template` SET `spell_school_immune_mask`=`spell_school_immune_mask`|1|2|4|8|16|32|64 WHERE `entry` IN (28912);
+
+--
+-- END UPDATING QUERIES
+--
+COMMIT;
+END //
+DELIMITER ;
+CALL updateDb();
+DROP PROCEDURE IF EXISTS `updateDb`;