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43 lines
1.5 KiB
SQL
43 lines
1.5 KiB
SQL
DROP TABLE IF EXISTS numbers1;
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DROP TABLE IF EXISTS numbers2;
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DROP TABLE IF EXISTS numbers3;
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DROP TABLE IF EXISTS numbers4;
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DROP TABLE IF EXISTS numbers5;
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CREATE TABLE numbers1 ENGINE = StripeLog AS SELECT number FROM numbers(1000);
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CREATE TABLE numbers2 ENGINE = TinyLog AS SELECT number FROM numbers(1000);
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CREATE TABLE numbers3 ENGINE = Log AS SELECT number FROM numbers(1000);
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CREATE TABLE numbers4 ENGINE = Memory AS SELECT number FROM numbers(1000);
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CREATE TABLE numbers5 ENGINE = MergeTree ORDER BY number AS SELECT number FROM numbers(1000);
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SELECT count() FROM merge(currentDatabase(), '^numbers\\d+$');
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SELECT DISTINCT count() FROM merge(currentDatabase(), '^numbers\\d+$') GROUP BY number;
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SET max_rows_to_read = 1000;
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SET max_threads = 'auto';
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SELECT count() FROM merge(currentDatabase(), '^numbers\\d+$') WHERE _table = 'numbers1';
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SET max_threads = 1;
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SELECT count() FROM merge(currentDatabase(), '^numbers\\d+$') WHERE _table = 'numbers2';
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SET max_threads = 10;
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SELECT count() FROM merge(currentDatabase(), '^numbers\\d+$') WHERE _table = 'numbers3';
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SET max_rows_to_read = 1;
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SET max_threads = 'auto';
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SELECT count() FROM merge(currentDatabase(), '^numbers\\d+$') WHERE _table = 'non_existing';
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SET max_threads = 1;
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SELECT count() FROM merge(currentDatabase(), '^numbers\\d+$') WHERE _table = 'non_existing';
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SET max_threads = 10;
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SELECT count() FROM merge(currentDatabase(), '^numbers\\d+$') WHERE _table = 'non_existing';
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DROP TABLE numbers1;
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DROP TABLE numbers2;
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DROP TABLE numbers3;
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DROP TABLE numbers4;
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DROP TABLE numbers5;
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