exchange table partition failed

[lidezhu]

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xa584430]

goroutine 1184 [running]:
github.com/pingcap/ticdc/pkg/common.(*TableInfo).ShadowCopyColumnSchema(...)
/root/ticdc/pkg/common/table_info.go:376
github.com/pingcap/ticdc/logservice/schemastore.extractTableInfoFuncForExchangeTablePartition(0xc0080ee9c0, 0x8d)
/root/ticdc/logservice/schemastore/persist_storage_ddl_handlers.go:1206 +0xc70
github.com/pingcap/ticdc/logservice/schemastore.(*versionedTableInfoStore).doApplyDDL(0xc008503140, 0xc0080ee9c0)
/root/ticdc/logservice/schemastore/multi_version.go:224 +0x8e3
github.com/pingcap/ticdc/logservice/schemastore.(*versionedTableInfoStore).applyDDLFromPersistStorage(0xc008503140, 0xc0080ee9c0)
/root/ticdc/logservice/schemastore/multi_version.go:190 +0x137
github.com/pingcap/ticdc/logservice/schemastore.(*persistentStorage).buildVersionedTableInfoStore(0xc0037f0370, 0xc008503140)
/root/ticdc/logservice/schemastore/persist_storage.go:489 +0x3a5
github.com/pingcap/ticdc/logservice/schemastore.(*persistentStorage).registerTable(0xc0037f0370, 0x8d, 0x651148001bc0009)
/root/ticdc/logservice/schemastore/persist_storage.go:290 +0x557
github.com/pingcap/ticdc/logservice/schemastore.(*schemaStore).RegisterTable(0xc0041ffd60, 0x8d, 0x651148001bc0009)
/root/ticdc/logservice/schemastore/schema_store.go:233 +0x38d
github.com/pingcap/ticdc/pkg/eventservice.(*eventBroker).addDispatcher(0xc00181a8c0, {0xcda0740, 0xc0042246d8})
/root/ticdc/pkg/eventservice/event_broker.go:823 +0x11a8
github.com/pingcap/ticdc/pkg/eventservice.(*eventService).registerDispatcher(0xc004602fc0, {0xcd63640, 0xc001029d60}, {0xcda0740, 0xc0042246d8})
/root/ticdc/pkg/eventservice/event_service.go:145 +0x1ab
github.com/pingcap/ticdc/pkg/eventservice.(*eventService).Run(0xc004602fc0, {0xcd63640, 0xc001029d60})
/root/ticdc/pkg/eventservice/event_service.go:97 +0x285
github.com/pingcap/ticdc/server.(*server).Run.(*server).Run.func2.func3()
/root/ticdc/server/server.go:186 +0x1a4
golang.org/x/sync/errgroup.(*Group).Go.func1()
/root/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:78 +0x92
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 562
/root/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:75 +0x12