perf: pre-allocate Vecs and HashSets when size is known#1676

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fvaleye wants to merge 10 commits intodelta-io:mainfrom

fvaleye:perf/pre-allocate-when-size-is-known

Commits on Jan 24, 2026

perf(engine): pre-allocate ordinals Vec in row group filtering
fvaleye
committed
perf(engine): pre-allocate Vec when initializing RowIndexBuilder
fvaleye
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perf(engine): pre-allocate Vec and HashMap in materialize methods
fvaleye
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perf(engine): pre-allocate seen_ordinals HashSet in RowIndexBuilder::build
fvaleye
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perf(engine): pre-allocate mask HashSet and getters Vec in visit_rows
fvaleye
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perf(engine): pre-allocate output_cols Vec in evaluate_transform_expression
fvaleye
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perf(engine): pre-allocate combined_fields and combined_columns in append_columns
fvaleye
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perf(transaction): pre-allocate HashSets and Vecs in transaction validation
fvaleye
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perf(log): pre-allocate files Vec in log listing
fvaleye
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perf(scan): pre-allocate transform_spec Vec in StateInfo
fvaleye
committed