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debug failure #77

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yyuan-squareup Jul 4, 2023
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yyuan-squareup Jul 4, 2023
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yyuan-squareup Jul 4, 2023
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3 changes: 2 additions & 1 deletion pkg/clone/transactionstream.go
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Original file line number Diff line number Diff line change
Expand Up @@ -127,7 +127,7 @@ func (s *TransactionStream) Run(ctx context.Context, b backoff.BackOff, output c
continue
}
currentTransaction.Mutations = append(currentTransaction.Mutations, s.toMutation(e, event))
case *replication.XIDEvent:
case *replication.XIDEvent: // the last event in a transaction
gset := event.GSet
currentTransaction.FinalPosition = Position{
File: nextPos.Name,
Expand Down Expand Up @@ -156,6 +156,7 @@ func (s *TransactionStream) Run(ctx context.Context, b backoff.BackOff, output c

func (s *TransactionStream) toMutation(e *replication.BinlogEvent, event *replication.RowsEvent) Mutation {
mutationType := toMutationType(e.Header.EventType)
fmt.Printf("mutationType = %s, RowsEvent = %v\n", mutationType, event)
switch mutationType {
case Update:
if len(event.Rows)%2 != 0 {
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1 change: 1 addition & 0 deletions pkg/clone/transactionwriter.go
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Expand Up @@ -617,6 +617,7 @@ func (m *Mutation) replace(ctx context.Context, tx DBWriter) error {
valueStrings := make([]string, 0, len(m.Rows))
valueArgs := make([]interface{}, 0, len(m.Rows)*len(tableSchema.Columns))
for _, row := range m.Rows {
fmt.Printf("tableName = %s, row = %v\n", tableName, row)
if len(row) != len(m.Table.Columns) {
panic(fmt.Sprintf("row column count %d doesn't match the cached table schema columns: %v (%v), "+
"there may have been a schema change and you will most likely need to restart replication by deleting"+
Expand Down