feat: support LEAD and LAG window functions with IGNORE NULLS#3876

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viirya merged 7 commits intoapache:mainfrom

viirya:feat-window-ignore-nulls

Apr 6, 2026

Commits on Mar 29, 2026

feat: support LAG window function with IGNORE NULLS

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claude
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Commits on Apr 1, 2026

fix: make LAG window tests deterministic by adding secondary sort key

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claude
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fix: enable WindowExec allowIncompatible for LAG tests

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claude
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Commits on Apr 2, 2026

fix: skip partition/order validation for offset window functions

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claude
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feat: add LEAD support and IGNORE NULLS test for LAG window function

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claude
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test: add LEAD with IGNORE NULLS test case

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Commits on Apr 3, 2026

test: add SQL tests for LAG/LEAD window functions with IGNORE NULLS

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claude
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