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17 lines
636 B
MySQL
17 lines
636 B
MySQL
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DROP TABLE IF EXISTS t_uncompressed_cache;
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CREATE TABLE t_uncompressed_cache(id UInt32, n UInt32)
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ENGINE = MergeTree ORDER BY tuple()
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SETTINGS min_bytes_for_wide_part = 0,
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min_compress_block_size = 12, max_compress_block_size = 12,
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index_granularity = 4;
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INSERT INTO t_uncompressed_cache SELECT number, number FROM numbers(200);
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SET max_threads = 1;
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SELECT sum(n), count() FROM t_uncompressed_cache PREWHERE id = 0 OR id = 5 OR id = 100 SETTINGS use_uncompressed_cache = 0;
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SELECT sum(n), count() FROM t_uncompressed_cache PREWHERE id = 0 OR id = 5 OR id = 100 SETTINGS use_uncompressed_cache = 1;
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DROP TABLE t_uncompressed_cache;
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