How to get an array from json?

Question

How would I do the following in BigQuery:

SELECT CAST(JSON '[1, 2]' AS ARRAY<INTEGER>)

Invalid cast from JSON to ARRAY at [1:13]

JSON is so much more difficult to work with than the normal types in BQ!

Answer 1

I hope it can help:

SELECT JSON_EXTRACT_ARRAY ('[1, 2]') AS your_array

In this case, the result is an array as expected

Answer 2

Can you try this?

SELECT JSON_VALUE_ARRAY('[1,2]') AS sample_array;

As mentioned in this documentation this json function extracts the json value. For more json functions you can access the link provided above.

Output :