[
https://issues.apache.org/jira/browse/FLINK-24626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Flink Jira Bot updated FLINK-24626:
-----------------------------------
Labels: auto-deprioritized-major correctness (was: correctness
stale-major)
Priority: Minor (was: Major)
This issue was labeled "stale-major" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Major, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> Flink JDBC Sink may lose data in left join
> ------------------------------------------
>
> Key: FLINK-24626
> URL: https://issues.apache.org/jira/browse/FLINK-24626
> Project: Flink
> Issue Type: Bug
> Components: Connectors / JDBC
> Reporter: Kenyore
> Priority: Minor
> Labels: auto-deprioritized-major, correctness
>
> The JDBC sink will lose some data while using
> TableBufferReducedStatementExecutor and left join.
> Here are a snippet of executeBatch.
> {code:java}
> @Override
> public void executeBatch() throws SQLException {
> for (Map.Entry<RowData, Tuple2<Boolean, RowData>> entry :
> reduceBuffer.entrySet()) {
> if (entry.getValue().f0) {
> upsertExecutor.addToBatch(entry.getValue().f1);
> } else {
> // delete by key
> deleteExecutor.addToBatch(entry.getKey());
> }
> }
> upsertExecutor.executeBatch();
> deleteExecutor.executeBatch();
> reduceBuffer.clear();
> }
> {code}
> Left join will generate a DETETE row before upsert row and the executeBatch
> will excute them in a wrong order.Whitch may causes data lose.
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
