jonathanc-n opened a new pull request, #20228:
URL: https://github.com/apache/datafusion/pull/20228
## Which issue does this PR close?
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- Part of #18295.
## Rationale for this change
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## What changes are included in this PR?
Push limit down into hash join using limit pushdown optimizer. Use limit
pushdown optimizer to pass the limit value to Hash Join exec using `with_fetch`
and passing the `fetch` value to `LimitedBatch Coalescer` to emit the batch
once the limit is hit.
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## Are these changes tested?
SLT tests + unit tests
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