xudong963 opened a new pull request, #21429:
URL: https://github.com/apache/datafusion/pull/21429
## Which issue does this PR close?
- Closes #21428.
## Rationale for this change
`datafusion_common::hash_utils` currently exposes hashing helpers only for
DataFusion's
`RandomState`. This makes the code harder to reuse from callers that need a
custom
`BuildHasher` for integration or test scenarios.
## What changes are included in this PR?
- Add `with_hashes_with_hasher` and `create_hashes_with_hasher` public APIs.
- Preserve the existing optimized `RandomState` path for the current
`with_hashes`
and `create_hashes` APIs.
- Extend the `hash_utils` tests to cover the new custom-hasher entry points.
- Gate the inequality assertion in the new custom-hasher test under
`force_hash_collisions` so the feature-specific test configuration keeps
passing.
## Are these changes tested?
Yes.
- `cargo test -p datafusion-common hash_utils`
- `cargo test -p datafusion-common --features force_hash_collisions
hash_utils`
## Are there any user-facing changes?
Yes. `datafusion-common` now exposes `with_hashes_with_hasher` and
`create_hashes_with_hasher` for callers that need a custom `BuildHasher`.
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