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22 lines
644 B
SQL
22 lines
644 B
SQL
-- Tags: no-random-settings, no-random-merge-tree-settings
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-- small number of insert threads can make insert terribly slow, especially with some build like msan
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DROP TABLE IF EXISTS mt;
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CREATE TABLE mt (x UInt64) ENGINE = MergeTree ORDER BY x SETTINGS parts_to_delay_insert = 100000, parts_to_throw_insert = 100000;
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SYSTEM STOP MERGES mt;
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SET max_block_size = 1, min_insert_block_size_rows = 0, min_insert_block_size_bytes = 0;
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INSERT INTO mt SELECT * FROM numbers(1000);
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SET max_block_size = 65536;
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SELECT count(), sum(x) FROM mt;
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DETACH TABLE mt;
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ATTACH TABLE mt;
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SELECT count(), sum(x) FROM mt;
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SYSTEM START MERGES mt;
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DROP TABLE mt;
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