[feature](reader) Optimize Complex Type Column Reading with Column Purning#59286

Merged

yiguolei merged 12 commits intobranch-4.0from

cherry-pick-nested_column_prune_4.0

Dec 24, 2025

Commits on Dec 23, 2025

[feature](reader) Optimize Complex Type Column Reading with Column Pruning (#57204)

committed
[fix](olap) The tablet schema cache caused incorrect behavior in the complex-type column pruning functionality (#58373)
mrhhsg
committed
[fix](olap) Fix the crash in column pruning caused by the light schema change (#58614)
mrhhsg
committed
[fix](olap) Fix the incorrect row count set when reading pruned columns (#58682)
mrhhsg
committed
[Optimize](Map) Optimize MapFileColumnIterator::read_by_rowids for batched map access (#58485)

eldenmoon
authored and
mrhhsg
committed
[opt](olap) Optimize the performance of StructFileColumnIterator::read_by_rowids in scenarios where the rowids are continuous (#58851)
mrhhsg
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[opt](olap) Optimize reading by rowids of Map Column (#59043)
mrhhsg
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[chore](test) add some tests for prune nested column (#58354)
924060929
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[opt](nereids) optimize push down project (#58370)
924060929
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[fix](nereids) fix Input slot(s) not in child's output (#58471)
924060929
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[fix](nereids) fix prune map type cause backend core (#58573)
924060929
committed
[fix](nereids) fix can not prune dereference expression (#58657)
924060929
committed