yuxiqian commented on code in PR #4064:
URL: https://github.com/apache/flink-cdc/pull/4064#discussion_r2502838226
##########
flink-cdc-connect/flink-cdc-source-connectors/flink-connector-mysql-cdc/src/main/java/org/apache/flink/cdc/connectors/mysql/debezium/reader/BinlogSplitReader.java:
##########
@@ -171,8 +173,33 @@ public Iterator<SourceRecords> pollSplitRecords() throws
InterruptedException {
Optional<SourceRecord> oscRecord =
parseOnLineSchemaChangeEvent(event.getRecord());
if (oscRecord.isPresent()) {
- sourceRecords.add(oscRecord.get());
- continue;
+ TableId tableId =
RecordUtils.getTableId(oscRecord.get());
+ if (tableId != null) {
+ LOG.info(
+ "Received the start event of online schema
change: {}. Save it for later.",
+ oscRecord.get());
+ pendingSchemaChangeEvents.put(tableId.toString(),
oscRecord.get());
+ continue;
+ }
+ }
+
+ Optional<String> finishedTables =
+
RecordUtils.parseOnLineSchemaRenameEvent(event.getRecord());
+ if (finishedTables.isPresent()) {
+ TableId tableId =
RecordUtils.getTableId(event.getRecord());
Review Comment:
Thanks @czy006 for reporting this, will try to fix this case.
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