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Posted to github@datafusion.apache.org by "zhangxffff (via GitHub)" <gi...@apache.org> on 2026/02/19 08:32:20 UTC
[I] Optimize dynamic IN list evaluation with vectorized Arrow eq kernel [datafusion]
zhangxffff opened a new issue, #20427:
URL: https://github.com/apache/datafusion/issues/20427
### Is your feature request related to a problem or challenge?
The dynamic IN list evaluation path in `InListExpr::evaluate()` is triggered when the list contains non-constant expressions such as column references (e.g., `a IN (b, c, d)`). It currently compares values row-by-row via `make_comparator`, bypassing Arrow's vectorized SIMD kernels. This makes it orders of magnitude slower than the static filter path (HashSet) used for constant literals.
### Describe the solution you'd like
_No response_
### Describe alternatives you've considered
_No response_
### Additional context
_No response_
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Re: [I] Optimize IN list with columns evaluation with vectorized Arrow eq kernel [datafusion]
Posted by "zhangxffff (via GitHub)" <gi...@apache.org>.
zhangxffff closed issue #20427: Optimize IN list with columns evaluation with vectorized Arrow eq kernel
URL: https://github.com/apache/datafusion/issues/20427
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Re: [I] Optimize dynamic IN list evaluation with vectorized Arrow eq kernel [datafusion]
Posted by "zhangxffff (via GitHub)" <gi...@apache.org>.
zhangxffff commented on issue #20427:
URL: https://github.com/apache/datafusion/issues/20427#issuecomment-3925597746
take
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