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35 lines
898 B
SQL
35 lines
898 B
SQL
DROP TABLE IF EXISTS foo;
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CREATE TABLE foo (ts DateTime, x UInt64)
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ENGINE = MergeTree PARTITION BY toYYYYMMDD(ts)
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ORDER BY (ts);
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INSERT INTO foo (ts, x) SELECT toDateTime('2020-01-01 00:05:00'), number from system.numbers_mt LIMIT 10;
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SET mutations_sync = 1;
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ALTER TABLE foo UPDATE x = 1 WHERE x = (SELECT x from foo WHERE x = 4);
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SELECT sum(x) == 42 FROM foo;
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ALTER TABLE foo UPDATE x = 1 WHERE x IN (SELECT x FROM foo WHERE x != 0);
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SELECT sum(x) == 9 FROM foo;
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DROP TABLE IF EXISTS bar;
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CREATE TABLE bar (ts DateTime, x UInt64)
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ENGINE = Memory;
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INSERT INTO bar (ts, x) SELECT toDateTime('2020-01-01 00:05:00'), number from system.numbers_mt LIMIT 10;
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SET mutations_sync = 1;
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ALTER TABLE bar UPDATE x = 1 WHERE x = (SELECT x from bar WHERE x = 4);
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SELECT sum(x) == 42 FROM bar;
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ALTER TABLE bar UPDATE x = 1 WHERE x IN (SELECT x FROM bar WHERE x != 0);
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SELECT sum(x) == 9 FROM bar;
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