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26 lines
448 B
MySQL
26 lines
448 B
MySQL
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DROP TABLE IF EXISTS table1;
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create table table1 (
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col1 Int32,
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col2 Int32
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)
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ENGINE = MergeTree
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partition by tuple()
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order by col1;
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INSERT INTO table1 VALUES (1, 2), (1, 4);
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with NULL as pid
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select a.col1, sum(a.col2) as summ
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from table1 a
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prewhere (pid is null or a.col2 = pid)
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group by a.col1;
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with 123 as pid
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select a.col1, sum(a.col2) as summ
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from table1 a
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prewhere (pid is null or a.col2 = pid)
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group by a.col1;
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DROP TABLE table1;
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