[GLUTEN-11605][VL] Write per-block column statistics in shuffle writer#11769
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acvictor wants to merge 2 commits intoapache:mainfrom
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[GLUTEN-11605][VL] Write per-block column statistics in shuffle writer#11769acvictor wants to merge 2 commits intoapache:mainfrom
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What changes are proposed in this pull request?
This PR adds per-block column statistics (min/max/hasNull) to the shuffle writer pipeline as a prerequisite for block-level pruning using dynamic filters at the shuffle reader. When
spark.gluten.sql.columnar.backend.velox.valueStream.dynamicFilter.enabledis true, the shuffle writer computes per-column min/max statistics from raw Arrow buffers duringevictBuffers()and serializes them as akStatisticsPayloadblock before each non-dictionary payload in the output file. This mirrors how parquet row group statistics enable predicate pushdown.How was this patch tested?
Added new tests and also ran the CI with config set to true.
Was this patch authored or co-authored using generative AI tooling?
No
Related issue: #11605