updated tbl_expressions in database

database/myems_system_db.sql

@@ -704,7 +704,7 @@ CREATE TABLE IF NOT EXISTS `myems_system_db`.`tbl_expressions` (
   `id` BIGINT NOT NULL AUTO_INCREMENT,
   `uuid` CHAR(36) NOT NULL,
   `virtual_meter_id` BIGINT NOT NULL,
-  `equation` VARCHAR(1024) NOT NULL,
+  `equation` LONGTEXT NOT NULL,
   PRIMARY KEY (`id`));
 CREATE INDEX `tbl_expressions_index_1` ON  `myems_system_db`.`tbl_expressions`   (`virtual_meter_id`);
 
@@ -717,7 +717,7 @@ CREATE INDEX `tbl_expressions_index_1` ON  `myems_system_db`.`tbl_expressions`
 -- INSERT INTO `myems_system_db`.`tbl_expressions`
 -- (`id`, `uuid`, `virtual_meter_id`, `equation`)
 -- VALUES
--- (1, '3fff2cfb-f755-44c8-a919-6135205a8573', 1, 'x+y-z');
+-- (1, '3fff2cfb-f755-44c8-a919-6135205a8573', 1, 'x1+x2-x3');
 -- COMMIT;
 
 -- ---------------------------------------------------------------------------------------------------------------------

database/upgrade1.1.3.sql

@@ -2,6 +2,9 @@
 ALTER TABLE myems_system_db.tbl_points MODIFY COLUMN low_limit decimal(18,3) NOT NULL;
 ALTER TABLE myems_system_db.tbl_points ADD is_virtual BOOL DEFAULT FALSE NOT NULL AFTER is_trend;
 
+-- UPDATE EXPRESSION TABLE
+ALTER TABLE myems_system_db.tbl_expressions MODIFY COLUMN equation LONGTEXT NOT NULL;
+
 
 -- UPDATE VERSION NUMBER
 UPDATE myems_system_db.tbl_versions SET version='1.1.3', release_date='2021-05-05' WHERE id=1;