# SUMARRAYDOUBLE

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

## Signature

> SUMARRAYDOUBLE(colName)

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

## Usage Examples

```sql
select SUMARRAYDOUBLE(doubleArrayCol) AS value
from myTable
```

| value            |
| ---------------- |
| \[1.5, 2.7, 3.9] |