kumarUjjawal opened a new pull request, #22529:
URL: https://github.com/apache/datafusion/pull/22529
## Which issue does this PR close?
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- Closes #21653.
## Rationale for this change
This lets users combine Spark-compatible functions with Spark SQL parsing
when they choose the dialect.
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## What changes are included in this PR?
- Add `Spark` to the SQL parser dialect config enum.
- Accept `spark` and `sparksql` as dialect config values.
- Use Spark dialect for Spark sqllogictests.
- Keep `with_spark_features()` config-neutral.
- Update dialect docs and expected config output.
- Add tests for Spark dialect parsing and Spark SQL execution with Spark
functions.
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## Are these changes tested?
Yes
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## Are there any user-facing changes?
Users can now set `datafusion.sql_parser.dialect` to `spark` or `sparksql`.
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