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52 lines
1.2 KiB
Markdown
52 lines
1.2 KiB
Markdown
---
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slug: /en/sql-reference/aggregate-functions/reference/minmap
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sidebar_position: 169
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---
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# minMap
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Calculates the minimum from `value` array according to the keys specified in the `key` array.
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**Syntax**
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```sql
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`minMap(key, value)`
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```
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or
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```sql
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minMap(Tuple(key, value))
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```
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Alias: `minMappedArrays`
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:::note
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- Passing a tuple of keys and value arrays is identical to passing an array of keys and an array of values.
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- The number of elements in `key` and `value` must be the same for each row that is totaled.
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:::
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**Parameters**
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- `key` — Array of keys. [Array](../../data-types/array.md).
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- `value` — Array of values. [Array](../../data-types/array.md).
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**Returned value**
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- Returns a tuple of two arrays: keys in sorted order, and values calculated for the corresponding keys. [Tuple](../../data-types/tuple.md)([Array](../../data-types/array.md), [Array](../../data-types/array.md)).
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**Example**
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Query:
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``` sql
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SELECT minMap(a, b)
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FROM values('a Array(Int32), b Array(Int64)', ([1, 2], [2, 2]), ([2, 3], [1, 1]))
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```
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Result:
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``` text
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┌─minMap(a, b)──────┐
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│ ([1,2,3],[2,1,1]) │
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└───────────────────┘
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```
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