mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-01 20:12:02 +00:00
7170f3c534
* prefer relative links from root * wip * split aggregate function reference * split system tables
777 B
777 B
| toc_priority |
|---|
| 142 |
minMap
Syntax: minMap(key, value) or minMap(Tuple(key, value))
Calculates the minimum from value array according to the keys specified in the key array.
Passing tuple of keys and values arrays is a synonym to passing two arrays of keys and values.
The number of elements in key and value must be the same for each row that is totaled.
Returns a tuple of two arrays: keys in sorted order, and values calculated for the corresponding keys.
Example:
SELECT minMap(a, b)
FROM values('a Array(Int32), b Array(Int64)', ([1, 2], [2, 2]), ([2, 3], [1, 1]))
┌─minMap(a, b)──────┐
│ ([1,2,3],[2,1,1]) │
└───────────────────┘