Use dumpling --chunk-by-region=true in tidb v3, got Unknown column ERROR

[glkappe]

RT

dumpling is special version
tidb v3

error：
[2021/06/04 08:17:15.147 +00:00] [ERROR] [main.go:215] ["dump failed error stack info"] [error="fail to get TiDB table regions info: Error 1054: Unknown column 's.db_name' in 'where clause'"] [errorVerbose="Error 1054: Unknown column 's.db_name' in 'where clause'\nfail to get TiDB table regions info"] [stack="github.com/pingcap/dumpling/v4/log.Error\n\t/Users/chauncy/code/goPath/src/github.com/pingcap/dumpling/v4/log/log.go:78\nmain.main\n\t/Users/chauncy/code/goPath/src/github.com/pingcap/dumpling/cmd/dumpling/main.go:215\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:203"]

possible information schema info is not match

[cyliu0]

We don't support this on v3 yet.