问题 DDL execute failed table asset_rate_chg_record is blocked by an unfinished ddl task on the same table .please excute interrupt or retry job until successful ,or execute the termination command , job ID : 20260803000281原因执行前一条DDL语句因为某些原因卡死手动或系统停止执行。导致后续的ddl语句阻塞无法执行。解决sqlstop ddl task 20260803000281