ARRAY_FIRST_INDEX
Returns the index of the first element in the indicated array for which the given function returns something other than 0. Index counting starts at 1.
The <function> parameter must be included.
Syntax
ARRAY_FIRST_INDEX(<function>, <array>)
Parameters
| Parameter | Description | Supported input types |
|---|---|---|
<function> | A Lambda function used to check elements in the array | Any Lambda function |
<array> | The array evaluated by the function | Any array |
Return Type
ARRAY of the same type as the input array
Example
The following example returns the first value in the levels array that is greater than 2:
SELECT
ARRAY_FIRST_INDEX(x -> x > 2, [ 1, 2, 3, 9 ]) AS levels;
Returns: 3