> For the complete documentation index, see [llms.txt](https://docs.pinot.apache.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pinot.apache.org/functions/aggregation/sumarraylong.md).

# SUMARRAYLONG

This section contains reference documentation for the SUMARRAYLONG function.

Computes the element-wise sum of long arrays across all rows in a group. All input arrays are treated as having the same length; shorter arrays are padded with zeros.

## Signature

> SUMARRAYLONG(colName)

The input column must be a multi-value or array column of type LONG.

## Usage Examples

```sql
select SUMARRAYLONG(longArrayCol) AS value
from myTable
```

| value            |
| ---------------- |
| \[100, 200, 300] |


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