Deduplicate predicate subquery projection columns - #61
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osipovartem merged 1 commit intoSep 4, 2026
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Summary
INprojection over bareVALUESWithout this,
SELECT 'a' IN (SELECT column1 FROM VALUES (...))can project the same right field twice and fail DataFusion's unique-expression-name validation.Verification
cargo +1.97.0 fmt --all --checkcargo +1.97.0 test -p datafusion-sqllogictest --test sqllogictests -- subquery_projection.sltcargo +1.97.0 test -p datafusion-optimizer decorrelate_predicate_subquery(51 passed)cargo +1.97.0 clippy -p datafusion-optimizer --all-targets --no-deps