GET
Extracts value from a Variant that contains ARRAY by index, or a Variant that contains OBJECT by field_name. The value is returned as a Variant or NULL if either of the arguments is NULL.
GET applies case-sensitive matching to field_name. For case-insensitive matching, use GET_IGNORE_CASE.
Syntax
GET( <variant>, <index> )
GET( <variant>, <field_name> )
Arguments
Return Type
VARIANT
Examples
SELECT get(parse_json('[2.71, 3.14]'), 0);
+------------------------------------+
| get(parse_json('[2.71, 3.14]'), 0) |
+------------------------------------+
| 2.71 |
+------------------------------------+
SELECT get(parse_json('{"aa":1, "aA":2, "Aa":3}'), 'aa');
+---------------------------------------------------+
| get(parse_json('{"aa":1, "aA":2, "Aa":3}'), 'aa') |
+---------------------------------------------------+
| 1 |
+---------------------------------------------------+
SELECT get(parse_json('{"aa":1, "aA":2, "Aa":3}'), 'AA');
+---------------------------------------------------+
| get(parse_json('{"aa":1, "aA":2, "Aa":3}'), 'AA') |
+---------------------------------------------------+
| NULL |
+---------------------------------------------------+