是否有 Hiveql function 我们可以使用它从 JSON 类型列具有特定键值的表中提取记录？

Question

I'm looking to get count of records in which a column(type) of json type has certain key:value in table named product_type.

_______________________________________________________
id  |   product |            type                     |

1    | product_1  | {"costly": true, "l_type": true}  |
2    | product_2  | {"costly": false, "l_type": true} |
3    | product_3  | {"costly": false, "l_type": true} |
4    | product_4  | {"costly": false, "l_type": true} |
_______________________________________________________

Something like-

select count(id) from product_table where type has {"costly": false}

What I have tried:

select count(*) from product_table where type LIKE '%"costly": false%' 

-> which is not yielding any results.

Expecting to get: 3 ( as there are 3 records that has value as false in type column for the key costly.)

Answer 1

I got it resolved:

select count(*) from product_table where get_json_object(type,$.costly) is true;