next_cron_time query use time string. independent of db timezone

dtmsvr/storage/sql/sql.go

@@ -138,9 +138,10 @@ func (s *Store) TouchCronTime(global *storage.TransGlobalStore, nextCronInterval
 func (s *Store) LockOneGlobalTrans(expireIn time.Duration) *storage.TransGlobalStore {
 	db := dbGet()
 	owner := shortuuid.New()
+	nextCronTime := getTimeStr(int64(expireIn / time.Second))
 	where := map[string]string{
-		dtmimp.DBTypeMysql:    fmt.Sprintf(`next_cron_time < date_add(now(), interval %d second) and status in ('prepared', 'aborting', 'submitted') limit 1`, int(expireIn/time.Second)),
-		dtmimp.DBTypePostgres: fmt.Sprintf(`id in (select id from trans_global where next_cron_time < current_timestamp + interval '%d second' and status in ('prepared', 'aborting', 'submitted') limit 1 )`, int(expireIn/time.Second)),
+		dtmimp.DBTypeMysql:    fmt.Sprintf(`next_cron_time < '%s' and status in ('prepared', 'aborting', 'submitted') limit 1`, nextCronTime),
+		dtmimp.DBTypePostgres: fmt.Sprintf(`id in (select id from trans_global where next_cron_time < '%s' and status in ('prepared', 'aborting', 'submitted') limit 1 )`, nextCronTime),
 	}[conf.Store.Driver]
 
 	sql := fmt.Sprintf(`UPDATE trans_global SET update_time='%s',next_cron_time='%s', owner='%s' WHERE %s`,
@@ -162,9 +163,10 @@ func (s *Store) LockOneGlobalTrans(expireIn time.Duration) *storage.TransGlobalS
 // ResetCronTime reset nextCronTime
 // unfinished transactions need to be retried as soon as possible after business downtime is recovered
 func (s *Store) ResetCronTime(after time.Duration, limit int64) (succeedCount int64, hasRemaining bool, err error) {
+	nextCronTime := getTimeStr(int64(after / time.Second))
 	where := map[string]string{
-		dtmimp.DBTypeMysql:    fmt.Sprintf(`next_cron_time > date_add(now(), interval %d second) and status in ('prepared', 'aborting', 'submitted') limit %d`, int(after/time.Second), limit),
-		dtmimp.DBTypePostgres: fmt.Sprintf(`id in (select id from trans_global where next_cron_time > current_timestamp + interval '%d second' and status in ('prepared', 'aborting', 'submitted') limit %d )`, int(after/time.Second), limit),
+		dtmimp.DBTypeMysql:    fmt.Sprintf(`next_cron_time > '%s' and status in ('prepared', 'aborting', 'submitted') limit %d`, nextCronTime, limit),
+		dtmimp.DBTypePostgres: fmt.Sprintf(`id in (select id from trans_global where next_cron_time > '%s' and status in ('prepared', 'aborting', 'submitted') limit %d )`, nextCronTime, limit),
 	}[conf.Store.Driver]
 
 	sql := fmt.Sprintf(`UPDATE trans_global SET update_time='%s',next_cron_time='%s' WHERE %s`,