Add support for automatic join column deduplication in DataFrame joins - #1185

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kosiew wants to merge 18 commits into

apache:mainfrom

kosiew:column-1173

Commits on Jul 4, 2025

refactor: style loading logic in DataFrameHtmlFormatter
kosiew
committed
460bae9

Commits on Jul 8, 2025

Add deduplicate option to DataFrame.join to drop duplicate join columns
kosiew
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ab224a6
test: add deduplicate join selection tests for DataFrame
kosiew
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42f5a72
test: add test for select after deduplicated join on DataFrame
kosiew
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a58a574
docs: enhance joins.rst with details on DataFrame naming and deduplication behavior
kosiew
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fa80aa6
feat: introduce JoinKeys dataclass for improved join key handling in DataFrame
kosiew
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7d7146c
docs: enhance _prepare_deduplicate docstring with detailed parameter and return information
kosiew
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f246224
feat: implement collision-safe temporary aliases for join column renaming in DataFrame
kosiew
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0ad1b00
fix: update sorting in test_join_deduplicate_multi to include multiple columns
kosiew
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01af791
test: add deduplication tests for all join types in test_join_deduplicate_all_types
kosiew
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4dd5369
test: enhance join deduplication tests with schema validation and individual column selection
kosiew
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ec769fe
fix: improve error messages for join key validation in DataFrame
kosiew
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19d69ca
feat: enhance join operation preparation with JoinPreparation class
kosiew
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0bb81df
fix join deduplicate and tests
kosiew
committed
3dc96f3

Commits on Jul 9, 2025