unstable test ddl_for_split_tables_with_failover

[wk989898]

What did you do?

run integration test ddl_for_split_tables_with_failover in pull_cdc_pulsar_integration_heavy_next_gen_legacy_safepoint
https://prow.tidb.net/jenkins/job/pingcap/job/ticdc/job/pull_cdc_pulsar_integration_heavy_next_gen_legacy_safepoint/36/stages/

What did you expect to see?

No response

What did you see instead?

[PANIC] [writer.go:416] ["flush dml events by the watermark failed"] [error="[CDC:ErrReachMaxTry]reach maximum try: 8, error: Failed query info: sqls: REPLACE INTO `test`.`table_5` (`data`,`id`) VALUES (?,?);REPLACE INTO `test`.`table_5` (`data`,`id`,`new_col`) VALUES (?,?,?);, values: [[insert_1783095752_25830_820 525] [insert_1783095752_25830_820 525 <nil>]], rowCount: 2, approximateSize: 0, startTs: [{467427853013614625 467427853013614625}]; : [CDC:ErrMySQLTxnError]MySQL txn error: Failed to execute DMLs, query info:REPLACE INTO `test`.`table_5` (`data`,`id`,`new_col`) VALUES (?,?,?), args:(insert_1783095752_25830_820, 525, NULL); : Error 1054 (42S22): Unknown column 'new_col' in 'field list': Failed query info: sqls: REPLACE INTO `test`.`table_5` (`data`,`id`) VALUES (?,?);REPLACE INTO `test`.`table_5` (`data`,`id`,`new_col`) VALUES (?,?,?);, values: [[insert_1783095752_25830_820 525] [insert_1783095752_25830_820 525 <nil>]], rowCount: 2, approximateSize: 0, startTs: [{467427853013614625 467427853013614625}]; : [CDC:ErrMySQLTxnError]MySQL txn error: Failed to execute DMLs, query info:REPLACE INTO `test`.`table_5` (`data`,`id`,`new_col`) VALUES (?,?,?), args:(insert_1783095752_25830_820, 525, NULL); : Error 1054 (42S22): Unknown column 'new_col' in 'field list'"] 

Versions of the cluster

Upstream TiDB cluster version (execute SELECT tidb_version(); in a MySQL client):

(paste TiDB cluster version here)

Upstream TiKV version (execute tikv-server --version):

(paste TiKV version here)

TiCDC version (execute cdc version):

master