Use leaf level ProjectionMask for parquet projections#20925
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friendlymatthew wants to merge 2 commits intoapache:mainfrom
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Use leaf level ProjectionMask for parquet projections#20925friendlymatthew wants to merge 2 commits intoapache:mainfrom
ProjectionMask for parquet projections#20925friendlymatthew wants to merge 2 commits intoapache:mainfrom
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ProjectionMask for parquet projections
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ParquetReadPlanfor leaf column resolution #20913Please review from the third commit
Rationale for this change
This PR reuses the
ParquetReadPlan(introduced for the row filter pushdown) to also resolve projection expressions to parquet leaf column indicesPreviously, projecting a single field from a struct with many children would read all leaves of that struct. This aligns the projection path with the row filter path, which already had leaf-level struct pruning