[refactor](be) Support recursive parquet complex readers#64357

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suxiaogang223:codex/parquet-complex-type-contract

Commits on Jun 10, 2026

[doc](parquet) Define complex type reader contract
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[doc](parquet) Clarify struct-only nested predicate contract
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[doc](parquet) Use struct-only nested predicate contract
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[doc](parquet) Clarify complex row-level filter contract
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[doc](parquet) Center contract on nested shape support
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[test](be) Add parquet nested predicate safety tests
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[improvement](be) Add parquet nested shape reader channel
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[fix](be) Fix parquet nested shape null map assignment
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[improvement](be) Support recursive parquet complex readers
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[test](be) Fix parquet map map test row count
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[fix](be) Preserve parquet complex top-level reads
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[fix](be) Skip parquet nested scalar shape slots
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[fix](be) Align parquet nested map scalar values
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[fix](be) Match parquet map value levels by repetition
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[fix](be) Consume parquet map value shape levels
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[fix](be) Align nested parquet map scalar values by slot
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[fix](be) Build nested parquet map values recursively
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[fix](be) Align nested parquet map scalar value slots
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[fix](be) Advance parquet nested nullable scalar slots
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[fix](be) Fix recursive parquet struct child alignment
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[refactor](be) Remove legacy parquet complex readers
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[test](be) Add deep parquet nested shape tests
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[improvement](be) Support nested parquet schema evolution
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[refactor](be) Add parquet struct predicate target
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[improvement](be) Add nested parquet null pruning
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[doc](be) Remove completed parquet complex type contract
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[fix](be) Align table reader test options after rebase
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[fix](be) Fix parquet column reader unsupported type test
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[fix](be) Normalize parquet arrow leaf batch materialization
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[refactor](be) Remove unused parquet ancestor shape API
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[refactor](be) Introduce parquet leaf reader adapter
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[refactor](be) Rename parquet leaf reader helpers
suxiaogang223
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[refactor](be) Support recursive parquet complex readers#64357

[refactor](be) Support recursive parquet complex readers#64357
suxiaogang223 wants to merge 32 commits into
apache:refact_reader_branchfrom
suxiaogang223:codex/parquet-complex-type-contract

Commits on Jun 10, 2026

[doc](parquet) Define complex type reader contract

[doc](parquet) Clarify struct-only nested predicate contract

[doc](parquet) Use struct-only nested predicate contract

[doc](parquet) Clarify complex row-level filter contract

[doc](parquet) Center contract on nested shape support

[test](be) Add parquet nested predicate safety tests

[improvement](be) Add parquet nested shape reader channel

[fix](be) Fix parquet nested shape null map assignment

[improvement](be) Support recursive parquet complex readers

[test](be) Fix parquet map map test row count

[fix](be) Preserve parquet complex top-level reads

[fix](be) Skip parquet nested scalar shape slots

[fix](be) Align parquet nested map scalar values

[fix](be) Match parquet map value levels by repetition

[fix](be) Consume parquet map value shape levels

[fix](be) Align nested parquet map scalar values by slot

[fix](be) Build nested parquet map values recursively

[fix](be) Align nested parquet map scalar value slots

[fix](be) Advance parquet nested nullable scalar slots

[fix](be) Fix recursive parquet struct child alignment

[refactor](be) Remove legacy parquet complex readers

[test](be) Add deep parquet nested shape tests

[improvement](be) Support nested parquet schema evolution

[refactor](be) Add parquet struct predicate target

[improvement](be) Add nested parquet null pruning

[doc](be) Remove completed parquet complex type contract

[fix](be) Align table reader test options after rebase

[fix](be) Fix parquet column reader unsupported type test

[fix](be) Normalize parquet arrow leaf batch materialization

[refactor](be) Remove unused parquet ancestor shape API

[refactor](be) Introduce parquet leaf reader adapter

[refactor](be) Rename parquet leaf reader helpers