fix 2.0.2 upgrade sql (#7566)

Co-authored-by: Ncaishunfeng <534328519@qq.com>

dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.2_schema/mysql/dolphinscheduler_ddl.sql

@@ -17,4 +17,22 @@
 
 SET sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));
 
-alter table t_ds_process_instance add column if not exists `restart_time` datetime DEFAULT NULL COMMENT 'process instance restart time';
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+-- uc_dolphin_T_t_ds_process_instance_A_restart_time
+drop PROCEDURE if EXISTS uc_dolphin_T_t_ds_process_instance_A_restart_time;
+delimiter d//
+CREATE PROCEDURE uc_dolphin_T_t_ds_process_instance_A_restart_time()
+   BEGIN
+       IF NOT EXISTS (SELECT 1 FROM information_schema.COLUMNS
+           WHERE TABLE_NAME='t_ds_process_instance'
+           AND TABLE_SCHEMA=(SELECT DATABASE())
+           AND COLUMN_NAME ='restart_time')
+   THEN
+         ALTER TABLE t_ds_process_instance ADD COLUMN `restart_time` datetime DEFAULT NULL COMMENT 'process instance restart time';
+       END IF;
+ END;
+
+d//
+
+delimiter ;
+CALL uc_dolphin_T_t_ds_process_instance_A_restart_time();
+DROP PROCEDURE uc_dolphin_T_t_ds_process_instance_A_restart_time;
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