joyCurry30 commented on code in PR #3981:
URL: https://github.com/apache/flink-cdc/pull/3981#discussion_r2033109139
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flink-cdc-connect/flink-cdc-source-connectors/flink-connector-postgres-cdc/src/main/java/io/debezium/connector/postgresql/PostgresStreamingChangeEventSource.java:
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@@ -113,7 +113,14 @@ public PostgresStreamingChangeEventSource(
@Override
public void init() {
- // refresh the schema so we have a latest view of the DB tables
+ // It's not necessary to refresh schema again, which is very
time-consuming.
+ // The schema of taskContext is the reference of
+ // PostgresSourceFetchTaskContext#schema, and
+ // has been initialized when submit StreamSplit fetch task by
+ // IncrementalSourceStreamFetcher#submitTask ->
+ // PostgresSourceFetchTaskContext#configure.
+ //
+ // refresh the schema so we have a latest view of the DB tables
Review Comment:
Maybe we should use standard java doc comment.
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