[branch-53] correct parquet leaf index mapping when schema contains struct cols (#20698)#20884
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alamb merged 1 commit intoapache:branch-53from Mar 12, 2026
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…pache#20698) ## Which issue does this PR close? - Closes apache#20695 ## Rationale for this change Row filter pushdown assumed Arrow field indices equal Parquet leaf indices, which breaks when Struct columns are present because their children expand into separate leaves and shift all subsequent indices
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53.0.0(Feb 2026 / Mar 2026) #19692leaf_indices_for_rootsreturns wrong Parquet leaf indices when schema contains Struct columns #20695 on branch-53This PR: