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19 lines
969 B
MySQL
19 lines
969 B
MySQL
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DROP TABLE IF EXISTS test.byte_identical_r1;
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DROP TABLE IF EXISTS test.byte_identical_r2;
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CREATE TABLE test.byte_identical_r1(x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/byte_identical', 'r1') ORDER BY x;
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CREATE TABLE test.byte_identical_r2(x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/byte_identical', 'r2') ORDER BY x;
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INSERT INTO test.byte_identical_r1(x) VALUES (1), (2), (3);
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SYSTEM SYNC REPLICA test.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 test.byte_identical_r1 ADD COLUMN y DEFAULT rand();
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OPTIMIZE TABLE test.byte_identical_r1 PARTITION tuple() FINAL;
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SELECT x, t1.y - t2.y FROM test.byte_identical_r1 t1 ANY INNER JOIN test.byte_identical_r2 t2 USING x ORDER BY x;
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DROP TABLE test.byte_identical_r1;
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DROP TABLE test.byte_identical_r2;
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