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23 lines
1015 B
SQL
23 lines
1015 B
SQL
USE test;
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DROP TABLE IF EXISTS A;
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DROP TABLE IF EXISTS B;
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CREATE TABLE A(k UInt32, t DateTime, a Float64) ENGINE = MergeTree() ORDER BY (k, t);
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INSERT INTO A(k,t,a) VALUES (1,1,1),(1,2,2),(1,3,3),(1,4,4),(1,5,5); -- multiple joined values
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INSERT INTO A(k,t,a) VALUES (2,1,1),(2,2,2),(2,3,3),(2,4,4),(2,5,5); -- one joined value
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INSERT INTO A(k,t,a) VALUES (3,1,1),(3,2,2),(3,3,3),(3,4,4),(3,5,5); -- no joined values
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CREATE TABLE B(k UInt32, t DateTime, b Float64) ENGINE = MergeTree() ORDER BY (k, t);
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INSERT INTO B(k,t,b) VALUES (1,2,2),(1,4,4);
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INSERT INTO B(k,t,b) VALUES (2,3,3);
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SELECT A.k, toString(A.t, 'UTC'), A.a, B.b, toString(B.t, 'UTC'), B.k FROM A ASOF LEFT JOIN B USING(k,t) ORDER BY (A.k, A.t);
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SELECT A.k, toString(A.t, 'UTC'), A.a, B.b, toString(B.t, 'UTC'), B.k FROM A ASOF INNER JOIN B ON A.k == B.k AND A.t == B.t ORDER BY (A.k, A.t);
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SELECT A.k, toString(A.t, 'UTC'), A.a, B.b, toString(B.t, 'UTC'), B.k FROM A ASOF JOIN B USING(k,t) ORDER BY (A.k, A.t);
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DROP TABLE A;
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DROP TABLE B;
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