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https://github.com/ClickHouse/ClickHouse.git
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48 lines
1.8 KiB
SQL
48 lines
1.8 KiB
SQL
DROP TABLE IF EXISTS moving_sum_num;
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DROP TABLE IF EXISTS moving_sum_dec;
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CREATE TABLE moving_sum_num (
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k String,
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dt DateTime,
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v UInt64
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)
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ENGINE = MergeTree ORDER BY (k, dt);
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INSERT INTO moving_sum_num
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SELECT 'b' k, toDateTime('2001-02-03 00:00:00')+number as dt, number as v
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FROM system.numbers
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LIMIT 5
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UNION ALL
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SELECT 'a' k, toDateTime('2001-02-03 00:00:00')+number as dt, number as v
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FROM system.numbers
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LIMIT 5;
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INSERT INTO moving_sum_num
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SELECT 'b' k, toDateTime('2001-02-03 01:00:00')+number as dt, 5+number as v
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FROM system.numbers
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LIMIT 5;
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SELECT * FROM moving_sum_num ORDER BY k,dt FORMAT TabSeparatedWithNames;
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-- Result of function 'groupArrayMovingSum' depends on the order of merging
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-- aggregate states which is implementation defined in external aggregation.
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SET max_bytes_before_external_group_by = 0;
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SELECT k, groupArrayMovingSum(v) FROM (SELECT * FROM moving_sum_num ORDER BY k, dt) GROUP BY k ORDER BY k FORMAT TabSeparatedWithNamesAndTypes;
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SELECT k, groupArrayMovingSum(3)(v) FROM (SELECT * FROM moving_sum_num ORDER BY k, dt) GROUP BY k ORDER BY k FORMAT TabSeparatedWithNamesAndTypes;
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SELECT k, groupArrayMovingAvg(v) FROM (SELECT * FROM moving_sum_num ORDER BY k, dt) GROUP BY k ORDER BY k FORMAT TabSeparatedWithNamesAndTypes;
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SELECT k, groupArrayMovingAvg(3)(v) FROM (SELECT * FROM moving_sum_num ORDER BY k, dt) GROUP BY k ORDER BY k FORMAT TabSeparatedWithNamesAndTypes;
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CREATE TABLE moving_sum_dec ENGINE = Memory AS
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SELECT k, dt, toDecimal64(v, 2) as v
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FROM moving_sum_num;
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SELECT k, groupArrayMovingSum(v) FROM (SELECT * FROM moving_sum_num ORDER BY k, dt) GROUP BY k ORDER BY k FORMAT TabSeparatedWithNamesAndTypes;
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SELECT k, groupArrayMovingSum(v) FROM (SELECT * FROM moving_sum_num ORDER BY k, dt) GROUP BY k ORDER BY k FORMAT TabSeparatedWithNamesAndTypes;
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DROP TABLE moving_sum_dec;
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DROP TABLE moving_sum_num;
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