yzeng1618 opened a new pull request, #10135:
URL: https://github.com/apache/seatunnel/pull/10135
…le pattern
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### Purpose of this pull request
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Fixes #9806.
When using MySQL-CDC as source and Elasticsearch as sink, MySQL TIMESTAMP
columns are deserialized into JDK8 LocalDateTime and then serialized in
ElasticsearchRowSerializer via Temporal#toString(), producing ISO-8601 format
like 2023-01-01T12 (line 34, column 56).
### Does this PR introduce _any_ user-facing change?
Yes.
Previously:
- When using MySQL-CDC → Elasticsearch, TIMESTAMP fields ended up in ES
documents as strings like 2023-01-01T12 (line 34, column 56).
- If the ES index date field mapping only accepted patterns like yyyy-MM-dd
HH:mm:ss, indexing could fail with date format mismatch errors.
Now:
- LocalDateTime values are serialized as yyyy-MM-dd HH:mm:ss (for example
2023-01-01 12 (line 34, column 56)), which is compatible with typical ES date
field mappings.
- Other Temporal implementations are still serialized using toString() to
avoid behavior changes in other scenarios.
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### How was this patch tested?
Added a unit test in ElasticsearchRowSerializerTest:
- testSerializeLocalDateTimeFieldFormat verifies that a LocalDateTime field
is serialized as "yyyy-MM-dd HH:mm:ss" and no longer contains the T separator.
- Existing ElasticsearchRowSerializerTest cases continue to pass (no change
to non-temporal serialization behavior).
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### Check list
* [ x ] If any new Jar binary package adding in your PR, please add License
Notice according
[New License
Guide](https://github.com/apache/seatunnel/blob/dev/docs/en/contribution/new-license.md)
* [ ] If necessary, please update the documentation to describe the new
feature. https://github.com/apache/seatunnel/tree/dev/docs
* [ ] If necessary, please update `incompatible-changes.md` to describe the
incompatibility caused by this PR.
* [ ] If you are contributing the connector code, please check that the
following files are updated:
1. Update
[plugin-mapping.properties](https://github.com/apache/seatunnel/blob/dev/plugin-mapping.properties)
and add new connector information in it
2. Update the pom file of
[seatunnel-dist](https://github.com/apache/seatunnel/blob/dev/seatunnel-dist/pom.xml)
3. Add ci label in
[label-scope-conf](https://github.com/apache/seatunnel/blob/dev/.github/workflows/labeler/label-scope-conf.yml)
4. Add e2e testcase in
[seatunnel-e2e](https://github.com/apache/seatunnel/tree/dev/seatunnel-e2e/seatunnel-connector-v2-e2e/)
5. Update connector
[plugin_config](https://github.com/apache/seatunnel/blob/dev/config/plugin_config)
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