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19 lines
747 B
SQL
19 lines
747 B
SQL
DROP TABLE IF EXISTS numbers1;
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DROP TABLE IF EXISTS numbers2;
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CREATE TABLE numbers1 ENGINE = Memory AS SELECT number FROM numbers(1000);
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CREATE TABLE numbers2 ENGINE = Memory AS SELECT number FROM numbers(1000);
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SELECT * FROM merge(currentDatabase(), '^numbers\\d+$') SAMPLE 0.1; -- { serverError SAMPLING_NOT_SUPPORTED }
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DROP TABLE numbers1;
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DROP TABLE numbers2;
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CREATE TABLE numbers1 ENGINE = MergeTree ORDER BY intHash32(number) SAMPLE BY intHash32(number) AS SELECT number FROM numbers(1000);
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CREATE TABLE numbers2 ENGINE = MergeTree ORDER BY intHash32(number) SAMPLE BY intHash32(number) AS SELECT number FROM numbers(1000);
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SELECT * FROM merge(currentDatabase(), '^numbers\\d+$') SAMPLE 0.01;
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DROP TABLE numbers1;
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DROP TABLE numbers2;
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