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19 lines
909 B
SQL
19 lines
909 B
SQL
DROP TABLE IF EXISTS byte_identical_r1;
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DROP TABLE IF EXISTS byte_identical_r2;
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CREATE TABLE byte_identical_r1(x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/byte_identical', 'r1') ORDER BY x;
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CREATE TABLE byte_identical_r2(x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/byte_identical', 'r2') ORDER BY x;
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INSERT INTO byte_identical_r1(x) VALUES (1), (2), (3);
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SYSTEM SYNC REPLICA byte_identical_r2;
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-- Add a column with a default expression that will yield different values on different replicas.
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-- Call optimize to materialize it. Replicas should compare checksums and restore consistency.
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ALTER TABLE byte_identical_r1 ADD COLUMN y DEFAULT rand();
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OPTIMIZE TABLE byte_identical_r1 PARTITION tuple() FINAL;
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SELECT x, t1.y - t2.y FROM byte_identical_r1 t1 ANY INNER JOIN byte_identical_r2 t2 USING x ORDER BY x;
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DROP TABLE byte_identical_r1;
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DROP TABLE byte_identical_r2;
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