yzeng1618 opened a new pull request, #9306:
URL: https://github.com/apache/seatunnel/pull/9306
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### Purpose of this pull request
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request adds checkstyle plugin.-->
https://github.com/apache/seatunnel/issues/9272
This PR adds case insensitivity feature to the Doris connector. During data
synchronization, especially in migration scenarios from Oracle to Doris, column
name matching issues often occur because Oracle stores table and field names in
uppercase by default, while Doris typically uses lowercase identifiers. By
adding a case_sensitive configuration option, users can control whether column
names are case-sensitive, thus resolving case difference issues during
cross-database system migration.
### Does this PR introduce _any_ user-facing change?
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Yes, this PR introduces a new configuration option case_sensitive that
allows users to control whether the Doris connector is case-sensitive when
processing column names. When set to false , the connector automatically
converts column names to lowercase, achieving case-insensitive column name
matching. This is particularly useful when migrating data from databases like
Oracle that use uppercase identifiers by default to Doris.
### How was this patch tested?
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If you are adding E2E test cases, maybe refer to
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here is a good example.
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- Integration tests: Tested actual data synchronization scenarios using
Oracle and Doris environments to ensure column name case differences do not
affect data synchronization
- Manual testing: Verified the stability and compatibility of the feature
under different configuration combinations
- Scenario testing: Mainly tested single table, multiple tables with
parameter set to false, and scenarios without setting parameters, all results
met the requirements
### Check list
* [ ] 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)
* [ x ] If necessary, please update the documentation to describe the new
feature. https://github.com/apache/seatunnel/tree/dev/docs
* [ ] 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)
* [ x ] Update the
[`release-note`](https://github.com/apache/seatunnel/blob/dev/release-note.md).
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