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21 lines
552 B
SQL
21 lines
552 B
SQL
DROP TABLE IF EXISTS mv;
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DROP TABLE IF EXISTS mv_source;
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DROP TABLE IF EXISTS mv_target;
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CREATE TABLE mv_source (`a` UInt64) ENGINE = MergeTree ORDER BY tuple();
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CREATE TABLE mv_target (`a` UInt64) ENGINE = MergeTree ORDER BY tuple();
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CREATE MATERIALIZED VIEW mv TO mv_target AS SELECT * FROM mv_source;
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INSERT INTO mv_source VALUES (1);
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ALTER TABLE mv_target ADD COLUMN b UInt8;
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INSERT INTO mv_source VALUES (1),(2),(3);
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SELECT * FROM mv ORDER BY a;
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SELECT * FROM mv_target ORDER BY a;
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DROP TABLE mv;
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DROP TABLE mv_source;
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DROP TABLE mv_target;
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