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apache / datafusion Public

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Project RecordBatch before evaluating `case`#18275

Closed

pepijnve wants to merge 46 commits intoapache:mainapache/datafusion:mainfrom

pepijnve:project_case_internalpepijnve/datafusion:project_case_internalCopy head branch name to clipboard

Conversation Commits46 (46)Checks Files changed

Closed

Project RecordBatch before evaluating `case`#18275
pepijnve wants to merge 46 commits intoapache:mainfrom
pepijnve:project_case_internal

Commits

Commits on Oct 20, 2025

Reduce record batch filtering in case_when_no_expr
pepijnve
committed
Reduce record batch filtering in case_when_with_expr
pepijnve
committed
Avoid unnecessary filtering in last iteration when no else expression is present
pepijnve
committed
Use interleave to construct case result
pepijnve
committed
Add comments
pepijnve
committed

Commits on Oct 21, 2025

Handle null where values correctly in `case_when_with_expr`
pepijnve
committed
Align `case_when_with_expr` and `case_when_no_expr`
pepijnve
committed
Exit early when all base values are null
pepijnve
committed
Avoid calling `interleave` in simple cases
pepijnve
committed
Formatting
pepijnve
committed
Merge branch 'main' into case_reduce_filtering
pepijnve
authored

Commits on Oct 23, 2025

Use a custom merge strategy that takes the case evaluation logic into account
pepijnve
committed
Always optimize filters
pepijnve
committed
Remove accidental addition of pub
pepijnve
committed
Add comments regarding `RecordBatch::new_unchecked` usage
pepijnve
committed
Attempt to clarify merge logic
pepijnve
committed
Rename arguments
pepijnve
committed
Formatting
pepijnve
committed
More diagrams
pepijnve
committed
More comments
pepijnve
committed
Remove redundant comment
pepijnve
committed

Commits on Oct 24, 2025

Calculate slice length once
pepijnve
committed
Avoid filtering when all base values are null
pepijnve
committed
Avoid filtering when branch matches all remaining rows
pepijnve
committed
Avoid expanding scalars in case_when_with_expr
pepijnve
committed

Commits on Oct 25, 2025

Update code comment
pepijnve
committed
Processing review comments
pepijnve
committed
Remove links to private fields
pepijnve
committed
Add debug assertion to detect duplicate row values.
pepijnve
committed

Commits on Oct 26, 2025

Add SLT with unreachable 1/0 in when predicate
pepijnve
committed
Add SLT that verifies that when branches are not evaluated for already matched rows
pepijnve
committed
Introduce PartialResultIndex to reduce size of indices array and avoid potential programming errors
pepijnve
committed
Formatting
pepijnve
committed
Minor code cleanup
pepijnve
committed

Commits on Oct 27, 2025

Merge remote-tracking branch 'upstream/HEAD' into case_reduce_filtering
pepijnve
committed
Reorganise base_values null handling to avoid unnecessary computations
pepijnve
committed
Doc revisions
pepijnve
committed
Assert row indices does not contain nulls
pepijnve
committed
Complete/single/covering naming consistency
pepijnve
committed
Formatting
pepijnve
committed
Add debug_assertions bounds check in merge
pepijnve
committed
Clarify usage of prep_null_mask_filter
pepijnve
committed
Move debug assertion inside loop to remove loop duplication
pepijnve
committed
Align with and without expr code
pepijnve
committed
Clarify add_branch_result diagram
pepijnve
committed
Project record batches to avoid filtering unused columns
pepijnve
committed

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