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GET

Extracts value from an ARRAY by index, an OBJECT by field_name, or a VARIANT that contains either ARRAY or OBJECT. 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(<array>, <index>)
get(<variant>, <index>)

get(<object>, <field_name>)
get(<variant>, <field_name>)

Arguments​

ArgumentsDescription
<array>The ARRAY value
<object>The OBJECT value
<variant>The VARIANT value that contains either an ARRAY or an OBJECT
<index>The Uint32 value specifies the position of the value in ARRAY
<field_name>The String value specifies the key in a key-value pair of OBJECT

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                                              |
+---------------------------------------------------+