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bench: multi-conjunct shared-prefix struct row-filter pushdown#23524

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SubhamSinghal:parquet-struct-row-filter-bench
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bench: multi-conjunct shared-prefix struct row-filter pushdown#23524
SubhamSinghal wants to merge 1 commit into
apache:mainfrom
SubhamSinghal:parquet-struct-row-filter-bench

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Which issue does this PR close?

Rationale for this change

The row-filter planner in datafusion-datasource-parquet walks the accessed struct-field paths for every filter, resolves the Parquet leaves, and builds a pruned Arrow schema. When multiple predicates share a common struct prefix, the planner can consolidate that traversal work — this is the case the StructAccessTree refactor in #23217 is intended to accelerate.

The existing bench suite does not cover this shape:

  • parquet_struct_query — single-field struct predicates only
    (WHERE s['id'] = 5).
  • parquet_struct_projection — projection-only, no WHERE clause.

So multi-conjunct shared-prefix planning is currently uninstrumented, and the effect of consolidating access-path traversals is invisible against the existing suite.

What changes are included in this PR?

Are these changes tested?

Are there any user-facing changes?

No. Benchmark-only; no library or API surface is touched.

@github-actions github-actions Bot added the core Core DataFusion crate label Jul 13, 2026
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