[CALCITE-7499] COALESCE with args of different types might be incorrectly simplified#4914
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snuyanzin merged 1 commit intoapache:mainfrom May 5, 2026
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dssysolyatin
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mihaibudiu
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Please change the issue/commit to reflect the actual problem
snuyanzin
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COALESCE does not take into account leastRestrictiveType for input argsCOALESCE with args of different types might be simplified wrong
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snuyanzin
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COALESCE with args of different types might be simplified wrongCOALESCE with args of different types might be incorrectly simplified
…rectly simplified
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Jira Link
CALCITE-7499
Changes Proposed
The problem of current implementation is that for
COALESCEwith input args of different types it doesn't preserve least restrictive type.