perf: short-circuit and collect_bool for IN list with column references#20694
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zhangxffff wants to merge 3 commits intoapache:mainfrom
Open
perf: short-circuit and collect_bool for IN list with column references#20694zhangxffff wants to merge 3 commits intoapache:mainfrom
zhangxffff wants to merge 3 commits intoapache:mainfrom
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run benchmark in_list |
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🤖 Hi @zhangxffff, thanks for the request (#20694 (comment)). |
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@Dandandan @adriangb This PR adds a short-circuit optimization that breaks early when all rows already match, and incorporates the suggestions from #20428 (BooleanBuffer::collect_bool and first-expr initialization). Would appreciate your review when you have a chance. |
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run benchmark in_list |
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🤖: Benchmark completed Details
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neilconway
reviewed
Mar 4, 2026
Co-authored-by: Adrian Garcia Badaracco <[email protected]>
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I'm curious if the |
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Benchmark result (before vs after vs after_null_count): For nulls=20% cases: after version showed ~3-5% regressions due to calling true_count() on every iteration. after_null_count eliminates this, matching before (e.g. list=28/match=100%/nulls=20%: 100.9µs vs 104.5µs). For the in_list_cols/Utf8 cases: the benchmark implicitly contains ~20% nulls, so the |
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Which issue does this PR close?
Rationale for this change
Third PR in the IN list optimization series (split from #20428):
What changes are included in this PR?
try_foldtoforloop; when all non-null rows are alreadytrue, skip remaining list items (up to 27x faster for match=100%/nulls=0%)BooleanBuffer::collect_bool: use inmake_comparatorfallback path for nested types instead(0..n).map().collect()(suggested by @Dandandan in perf: Optimize IN list with column references evaluation #20428 )or_kleene(all_false, rhs)(suggested by @Dandandan in perf: Optimize IN list with column references evaluation #20428 )Are these changes tested?
Yes, and add test to cover short-circuit, short-circuit with nulls, and struct column references (make_comparator fallback path)
Benchmark result:
Are there any user-facing changes?