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44 lines
928 B
SQL
44 lines
928 B
SQL
DROP TABLE IF EXISTS test_xy;
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DROP TABLE IF EXISTS updates;
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CREATE TABLE test_xy
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(
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`x` Int32,
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`y` String
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)
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ENGINE = MergeTree
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ORDER BY x;
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CREATE TABLE updates
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(
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`x` Int32,
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`y` String
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)
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ENGINE = MergeTree
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ORDER BY x;
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INSERT INTO test_xy(x, y) VALUES (1, 'a1'), (2, 'a2'), (3, 'a3');
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INSERT INTO updates(x, y) VALUES (2, 'b2'), (3, 'b3');
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SELECT x, y,
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transform(x,
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(select groupArray(x) from (select x, y from updates order by x) t1),
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(select groupArray(y) from (select x, y from updates order by x) t2),
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y)
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FROM test_xy
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WHERE 1 ORDER BY x, y;
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SET mutations_sync = 1;
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ALTER table test_xy
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UPDATE
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y = transform(x,
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(select groupArray(x) from (select x, y from updates order by x) t1),
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(select groupArray(y) from (select x, y from updates order by x) t2),
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y)
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WHERE 1;
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SELECT * FROM test_xy ORDER BY x, y;
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DROP TABLE test_xy;
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DROP TABLE updates;
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