mirror of
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29 lines
840 B
SQL
29 lines
840 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 PROJECTION d_order ( SELECT min(c_id) GROUP BY `d`);
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ALTER TABLE test MATERIALIZE PROJECTION d_order;
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ALTER TABLE test DROP PROJECTION d_order SETTINGS mutations_sync = 2; --{serverError BAD_ARGUMENTS}
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-- just to wait prev mutation
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ALTER TABLE test DELETE where d = 'Hello' SETTINGS mutations_sync = 2;
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ALTER TABLE test DROP PROJECTION d_order SETTINGS mutations_sync = 2;
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select * from test format Null;
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DROP TABLE test;
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