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https://github.com/ClickHouse/ClickHouse.git
synced 2026-10-28 16:18:23 +08:00
Nikita Mikhailov
2de1aa5749
Move column reuse into `IColumn::cut` and its overrides. Document that slices can share storage and use `IColumn::mutate` in the hash join caller. Add shared-column correctness coverage and a nested-array benchmark. Suggested in https://github.com/ClickHouse/ClickHouse/pull/118788#discussion_r3958035772
12 lines
741 B
XML
12 lines
741 B
XML
<test>
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<settings>
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<max_threads>1</max_threads>
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<max_block_size>65536</max_block_size>
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</settings>
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<create_query>CREATE TABLE array_join_nested_columns (samples Array(Array(UInt64))) ENGINE = Memory</create_query>
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<fill_query>INSERT INTO array_join_nested_columns SELECT [arrayMap(x -> x + number, range(16384))] FROM numbers(512)</fill_query>
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<query>SELECT sum(arraySum(values)) FROM array_join_nested_columns ARRAY JOIN samples AS values</query>
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<query>SELECT sum(arraySum(values)) FROM array_join_nested_columns ARRAY JOIN samples AS values WHERE values[1] % 2 = 0 SETTINGS query_plan_fuse_filter_into_array_join = 1</query>
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<drop_query>DROP TABLE array_join_nested_columns</drop_query>
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</test>
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