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https://github.com/ClickHouse/ClickHouse.git
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29 lines
1.0 KiB
MySQL
29 lines
1.0 KiB
MySQL
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DROP TABLE IF EXISTS test_alter;
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CREATE TABLE test_alter (x Date, s String) ENGINE = MergeTree ORDER BY s PARTITION BY x;
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ALTER TABLE test_alter MODIFY COLUMN s DEFAULT 'Hello';
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ALTER TABLE test_alter MODIFY COLUMN x DEFAULT '2000-01-01';
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DESCRIBE TABLE test_alter;
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DROP TABLE test_alter;
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DROP TABLE IF EXISTS test_alter_r1;
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DROP TABLE IF EXISTS test_alter_r2;
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CREATE TABLE test_alter_r1 (x Date, s String) ENGINE = ReplicatedMergeTree('/clickhouse/tables/test/alter', 'r1') ORDER BY s PARTITION BY x;
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CREATE TABLE test_alter_r2 (x Date, s String) ENGINE = ReplicatedMergeTree('/clickhouse/tables/test/alter', 'r2') ORDER BY s PARTITION BY x;
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ALTER TABLE test_alter_r1 MODIFY COLUMN s DEFAULT 'Hello';
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ALTER TABLE test_alter_r2 MODIFY COLUMN x DEFAULT '2000-01-01';
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SYSTEM SYNC REPLICA test_alter_r1;
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SYSTEM SYNC REPLICA test_alter_r2;
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DESCRIBE TABLE test_alter_r1;
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DESCRIBE TABLE test_alter_r2;
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SYSTEM RESTART REPLICAS;
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DESCRIBE TABLE test_alter_r1;
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DESCRIBE TABLE test_alter_r2;
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DROP TABLE test_alter_r1;
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DROP TABLE test_alter_r2;
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