[SPARK-55886][SQL][PYTHON] Add DataFrame.zip for merging column-projected DataFrames#54976

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zhengruifeng wants to merge 13 commits into

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zhengruifeng:df-zip

Commits on May 29, 2026

[SPARK-55886][SQL][PYTHON] Add DataFrame.zip for merging column-projected DataFrames
zhengruifeng
committed
Support Project chains in ResolveZip with composed alias substitution
zhengruifeng
committed
Skip DataFrame.zip doctest under Spark Connect
zhengruifeng
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Address cloud-fan review: depth-layered ResolveZip, tighter CheckAnalysis, accurate doc
zhengruifeng
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Reflow Dataset.zip scaladoc to satisfy scalafmt
zhengruifeng
committed
Update Zip class doc for depth-layered rewrite and non-scalar UDF trigger
zhengruifeng
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Deduplicate shared-parent aliases in ResolveZip to avoid double evaluation
zhengruifeng
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Verify shared-parent zip result at runtime with checkAnswer
zhengruifeng
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Clarify why the shared-parent runtime equality is exact
zhengruifeng
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Use a random int producer in the shared-parent zip test
zhengruifeng
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Use uniform() random int in the shared-parent zip test
zhengruifeng
committed

Commits on May 30, 2026

Deduplicate shared-aliases in ResolveZip to avoid double evaluation
zhengruifeng
committed

Commits on May 31, 2026

Preserve dropped output column metadata in ResolveZip dedup
cloud-fan
committed