timeSeriesGroupArray

引入版本：v25.8.0 按时间戳升序对时间序列数据进行排序。

此函数为实验性功能，请通过设置 allow_experimental_ts_to_grid_aggregate_function=true 启用。

语法

timeSeriesGroupArray(timestamp, value)

参数

timestamp — 样本的时间戳。DateTime 或 UInt32 或 UInt64
value — 与该时间戳对应的时间序列值。(U)Int* 或 Float* 或 Decimal

返回值 返回一个按时间戳升序排列的 (timestamp, value) 元组数组。如果同一时间戳对应多个值，则函数会选择其中最大的值。Array(Tuple(T1, T2)) 示例 单个值的基本用法

Query

WITH
    [110, 120, 130, 140, 140, 100]::Array(UInt32) AS timestamps,
    [1, 6, 8, 17, 19, 5]::Array(Float32) AS values
SELECT timeSeriesGroupArray(timestamp, value)
FROM
(
    SELECT
        arrayJoin(arrayZip(timestamps, values)) AS ts_and_val,
        ts_and_val.1 AS timestamp,
        ts_and_val.2 AS value
);

Response

┌─timeSeriesGroupArray(timestamp, value)───────────────┐
│ [(100, 5), (110, 1), (120, 6), (130, 8), (140, 19)]  │
└──────────────────────────────────────────────────────┘

将多个时间戳样本和值以等长数组的形式传递

Query

WITH
    [110, 120, 130, 140, 140, 100]::Array(UInt32) AS timestamps,
    [1, 6, 8, 17, 19, 5]::Array(Float32) AS values
SELECT timeSeriesGroupArray(timestamps, values);

Response

┌─timeSeriesGroupArray(timestamps, values)──────────────┐
│ [(100, 5), (110, 1), (120, 6), (130, 8), (140, 19)]   │
└───────────────────────────────────────────────────────┘

​timeSeriesGroupArray

timeSeriesGroupArray