[master][pick] Forward-port Parquet nullable selection and Iceberg Variant reads - #66413

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Gabriel39 wants to merge 13 commits into

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Gabriel39:dev/forward-port-66397-66302-master

Commits on Aug 5, 2026

[opt](parquet) Fuse fragmented nullable selection planning (#66397)
Gabriel39
committed
81a6f86
[feature](variant) Support reading Iceberg Variant from Parquet (#66302)
Gabriel39
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50c1af7
[fix](catalog) Safely publish storage adapter snapshots (#66392)
Gabriel39
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4f0f065
[fix](iceberg) Harden Variant compatibility and validation
Gabriel39
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bbc85c4
test: expand Iceberg Variant read coverage
Gabriel39
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6851120
fix: preserve nested Variant append atomicity
Gabriel39
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8c78f00
[fix](parquet) Isolate Variant planning from ordinary scans
Gabriel39
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469931c
[fix](variant) Preserve projected shredded states across exchange
Gabriel39
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52dc650
[fix](variant) Adapt shredded callback to master
Gabriel39
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d5f0e2c
[fix](variant) Revert projected shredded state preservation
Gabriel39
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5c8528a
[improvement](parquet) Use predicate tree for compound page pruning
Gabriel39
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478fa64

Commits on Aug 6, 2026

[fix](variant) Support native Paimon Variant reads
Gabriel39
committed
07ace93
[fix](scan) Preserve runtime filter refresh layout
Gabriel39
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a800d33