mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-24 16:42:05 +00:00
42 lines
776 B
Markdown
42 lines
776 B
Markdown
|
---
|
||
|
slug: /en/sql-reference/aggregate-functions/reference/grouparraylast
|
||
|
sidebar_position: 110
|
||
|
---
|
||
|
|
||
|
# groupArrayLast
|
||
|
|
||
|
Syntax: `groupArrayLast(max_size)(x)`
|
||
|
|
||
|
Creates an array of last argument values.
|
||
|
For example, `groupArrayLast(1)(x)` is equivalent to `[anyLast (x)]`.
|
||
|
|
||
|
In some cases, you can still rely on the order of execution. This applies to cases when `SELECT` comes from a subquery that uses `ORDER BY`.
|
||
|
|
||
|
**Example**
|
||
|
|
||
|
Query:
|
||
|
|
||
|
```sql
|
||
|
select groupArrayLast(2)(number+1) numbers from numbers(10)
|
||
|
```
|
||
|
|
||
|
Result:
|
||
|
|
||
|
```text
|
||
|
┌─numbers─┐
|
||
|
│ [9,10] │
|
||
|
└─────────┘
|
||
|
```
|
||
|
|
||
|
In compare to `groupArray`:
|
||
|
|
||
|
```sql
|
||
|
select groupArray(2)(number+1) numbers from numbers(10)
|
||
|
```
|
||
|
|
||
|
```text
|
||
|
┌─numbers─┐
|
||
|
│ [1,2] │
|
||
|
└─────────┘
|
||
|
```
|