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Add a test

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This commit is contained in:
Alexey Milovidov 2024-02-21 23:03:01 +01:00
parent 31de27b149
commit d0d84a8401
2 changed files with 51 additions and 0 deletions
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tests/queries/0_stateless/02998_primary_key_skip_columns.reference Normal file
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Key size: 2400000
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Key size: 800008

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tests/queries/0_stateless/02998_primary_key_skip_columns.sql Normal file
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DROP TABLE IF EXISTS test;
CREATE TABLE test (a UInt64, b UInt64, c UInt64) ENGINE = MergeTree ORDER BY (a, b, c) SETTINGS index_granularity = 1, primary_key_ratio_of_unique_prefix_values_to_skip_suffix_columns = 1;
INSERT INTO test SELECT sipHash64(number, 1), sipHash64(number, 2), sipHash64(number, 3) FROM numbers(100000);
SELECT count() FROM test;
SELECT count() FROM test WHERE a > 1849813033528774208 AND a < 4594276315503201760;
SELECT count() FROM test WHERE b > 7898976344263989848 AND b < 8040320939819153137;
SELECT count() FROM test WHERE c > 13239894303140990071 AND c < 16179795840886947236;
SELECT count() FROM test WHERE a > 1849813033528774208 AND a < 4594276315503201760 AND b > 7898976344263989848 AND b < 8040320939819153137;
SELECT count() FROM test WHERE b > 7898976344263989848 AND b < 8040320939819153137 AND c > 13239894303140990071 AND c < 16179795840886947236;
SELECT count() FROM test WHERE a > 1849813033528774208 AND a < 4594276315503201760 AND c > 13239894303140990071 AND c < 16179795840886947236;
SELECT count() FROM test WHERE a > 1849813033528774208 AND a < 4594276315503201760 AND b > 7898976344263989848 AND b < 8040320939819153137 AND c > 13239894303140990071 AND c < 16179795840886947236;
SELECT 'Key size: ', round(sum(primary_key_bytes_in_memory), -5) FROM system.parts WHERE database = currentDatabase() AND table = 'test';
ALTER TABLE test MODIFY SETTING primary_key_ratio_of_unique_prefix_values_to_skip_suffix_columns = 0.9;
DETACH TABLE test;
ATTACH TABLE test;
SELECT count() FROM test;
SELECT count() FROM test WHERE a > 1849813033528774208 AND a < 4594276315503201760;
SELECT count() FROM test WHERE b > 7898976344263989848 AND b < 8040320939819153137;
SELECT count() FROM test WHERE c > 13239894303140990071 AND c < 16179795840886947236;
SELECT count() FROM test WHERE a > 1849813033528774208 AND a < 4594276315503201760 AND b > 7898976344263989848 AND b < 8040320939819153137;
SELECT count() FROM test WHERE b > 7898976344263989848 AND b < 8040320939819153137 AND c > 13239894303140990071 AND c < 16179795840886947236;
SELECT count() FROM test WHERE a > 1849813033528774208 AND a < 4594276315503201760 AND c > 13239894303140990071 AND c < 16179795840886947236;
SELECT count() FROM test WHERE a > 1849813033528774208 AND a < 4594276315503201760 AND b > 7898976344263989848 AND b < 8040320939819153137 AND c > 13239894303140990071 AND c < 16179795840886947236;
SELECT 'Key size: ', round(sum(primary_key_bytes_in_memory), 5) FROM system.parts WHERE database = currentDatabase() AND table = 'test';
DROP TABLE test;