opt: fix PruneUnionAllCols panic with outer scope columns#160580
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craig[bot] merged 1 commit intocockroachdb:masterfrom Jan 11, 2026
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opt: fix PruneUnionAllCols panic with outer scope columns#160580craig[bot] merged 1 commit intocockroachdb:masterfrom
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Before this change, the PruneUnionAllCols normalization rule would panic in crdb-test builds when the projection above a UnionAll referenced columns from an outer scope (e.g., due to an apply-join or routine). This occurred because the rule computed the needed column set by combining ProjectionOuterCols and passthrough columns, which could include outer scope columns not present in the UnionAll's output. These outer columns were then passed to NeededColMapLeft/Right, which call TranslateColSetStrict and panic when given unknown columns. This change fixes the issue by intersecting the needed column set with the UnionAll's output columns before passing it to NeededColMapLeft/ Right. This ensures only columns actually present in the UnionAll are translated, preventing the panic. Fixes cockroachdb#159793 Release note: None Co-Authored-By: Claude <noreply@anthropic.com>
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Reviewable status:complete! 1 of 0 LGTMs obtained (waiting on @DrewKimball).
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160580: opt: fix PruneUnionAllCols panic with outer scope columns r=michae2 a=DrewKimball Before this change, the PruneUnionAllCols normalization rule would panic in crdb-test builds when the projection above a UnionAll referenced columns from an outer scope (e.g., due to an apply-join or routine). This occurred because the rule computed the needed column set by combining ProjectionOuterCols and passthrough columns, which could include outer scope columns not present in the UnionAll's output. These outer columns were then passed to NeededColMapLeft/Right, which call TranslateColSetStrict and panic when given unknown columns. This change fixes the issue by intersecting the needed column set with the UnionAll's output columns before passing it to NeededColMapLeft/ Right. This ensures only columns actually present in the UnionAll are translated, preventing the panic. Fixes #159793 Release note: None Co-Authored-By: Claude <noreply@anthropic.com> Co-authored-by: Drew Kimball <drewk@cockroachlabs.com>
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160580: opt: fix PruneUnionAllCols panic with outer scope columns r=michae2 a=DrewKimball Before this change, the PruneUnionAllCols normalization rule would panic in crdb-test builds when the projection above a UnionAll referenced columns from an outer scope (e.g., due to an apply-join or routine). This occurred because the rule computed the needed column set by combining ProjectionOuterCols and passthrough columns, which could include outer scope columns not present in the UnionAll's output. These outer columns were then passed to NeededColMapLeft/Right, which call TranslateColSetStrict and panic when given unknown columns. This change fixes the issue by intersecting the needed column set with the UnionAll's output columns before passing it to NeededColMapLeft/ Right. This ensures only columns actually present in the UnionAll are translated, preventing the panic. Fixes #159793 Release note: None Co-Authored-By: Claude <noreply@anthropic.com> 160632: sql/bulkmerge: reuse SST iterator across bulk merge tasks r=spilchen a=spilchen This change reduces overhead in the bulk merge processor by initializing a single iterator over all input SSTs at startup, rather than creating a new one per task. The iterator is reused across tasks, seeking only when needed. Informs #159414 Epic: CRDB-48845 Release note: none Co-authored by: `@jeffswenson` Co-authored-by: Drew Kimball <drewk@cockroachlabs.com> Co-authored-by: Matt Spilchen <matt.spilchen@cockroachlabs.com>
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160580: opt: fix PruneUnionAllCols panic with outer scope columns r=michae2 a=DrewKimball Before this change, the PruneUnionAllCols normalization rule would panic in crdb-test builds when the projection above a UnionAll referenced columns from an outer scope (e.g., due to an apply-join or routine). This occurred because the rule computed the needed column set by combining ProjectionOuterCols and passthrough columns, which could include outer scope columns not present in the UnionAll's output. These outer columns were then passed to NeededColMapLeft/Right, which call TranslateColSetStrict and panic when given unknown columns. This change fixes the issue by intersecting the needed column set with the UnionAll's output columns before passing it to NeededColMapLeft/ Right. This ensures only columns actually present in the UnionAll are translated, preventing the panic. Fixes #159793 Release note: None Co-Authored-By: Claude <noreply@anthropic.com> Co-authored-by: Drew Kimball <drewk@cockroachlabs.com>
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160580: opt: fix PruneUnionAllCols panic with outer scope columns r=michae2 a=DrewKimball Before this change, the PruneUnionAllCols normalization rule would panic in crdb-test builds when the projection above a UnionAll referenced columns from an outer scope (e.g., due to an apply-join or routine). This occurred because the rule computed the needed column set by combining ProjectionOuterCols and passthrough columns, which could include outer scope columns not present in the UnionAll's output. These outer columns were then passed to NeededColMapLeft/Right, which call TranslateColSetStrict and panic when given unknown columns. This change fixes the issue by intersecting the needed column set with the UnionAll's output columns before passing it to NeededColMapLeft/ Right. This ensures only columns actually present in the UnionAll are translated, preventing the panic. Fixes #159793 Release note: None Co-Authored-By: Claude <noreply@anthropic.com> Co-authored-by: Drew Kimball <drewk@cockroachlabs.com>
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160580: opt: fix PruneUnionAllCols panic with outer scope columns r=michae2 a=DrewKimball Before this change, the PruneUnionAllCols normalization rule would panic in crdb-test builds when the projection above a UnionAll referenced columns from an outer scope (e.g., due to an apply-join or routine). This occurred because the rule computed the needed column set by combining ProjectionOuterCols and passthrough columns, which could include outer scope columns not present in the UnionAll's output. These outer columns were then passed to NeededColMapLeft/Right, which call TranslateColSetStrict and panic when given unknown columns. This change fixes the issue by intersecting the needed column set with the UnionAll's output columns before passing it to NeededColMapLeft/ Right. This ensures only columns actually present in the UnionAll are translated, preventing the panic. Fixes #159793 Release note: None Co-Authored-By: Claude <noreply@anthropic.com> Co-authored-by: Drew Kimball <drewk@cockroachlabs.com>
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Before this change, the PruneUnionAllCols normalization rule would panic in crdb-test builds when the projection above a UnionAll referenced columns from an outer scope (e.g., due to an apply-join or routine). This occurred because the rule computed the needed column set by combining ProjectionOuterCols and passthrough columns, which could include outer scope columns not present in the UnionAll's output. These outer columns were then passed to NeededColMapLeft/Right, which call TranslateColSetStrict and panic when given unknown columns.
This change fixes the issue by intersecting the needed column set with the UnionAll's output columns before passing it to NeededColMapLeft/ Right. This ensures only columns actually present in the UnionAll are translated, preventing the panic.
Fixes #159793
Release note: None
Co-Authored-By: Claude noreply@anthropic.com