mirror of
https://github.com/ClickHouse/ClickHouse.git
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28 lines
766 B
SQL
28 lines
766 B
SQL
CREATE TABLE test (
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`c_id` String,
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`p_id` String,
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`d` String
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)
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ENGINE = ReplicatedMergeTree('/clickhouse/tables/{database}/test/test_table', '1')
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ORDER BY (c_id, p_id);
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INSERT INTO test SELECT '1', '11', '111' FROM numbers(3);
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INSERT INTO test SELECT '2', '22', '22' FROM numbers(3);
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set mutations_sync=0;
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ALTER TABLE test UPDATE d = d || toString(sleepEachRow(0.3)) where 1;
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ALTER TABLE test ADD COLUMN x UInt32 default 0;
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ALTER TABLE test UPDATE d = d || '1' where x = 42;
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ALTER TABLE test DROP COLUMN x SETTINGS mutations_sync = 2; --{serverError BAD_ARGUMENTS}
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ALTER TABLE test UPDATE x = x + 1 where 1 SETTINGS mutations_sync = 2;
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ALTER TABLE test DROP COLUMN x SETTINGS mutations_sync = 2;
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select * from test format Null;
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DROP TABLE test;
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