OBJECT function

Creates an object of the SUPER data type.

Syntax

OBJECT ( [ key1, value1 ], [ key2, value2 ...] )

Arguments

Return type

SUPER

Example

-- Creates an empty object.
select object();

object
--------
{}
(1 row)
            
-- Creates objects with different keys and values.
select object('a', 1, 'b', true, 'c', 3.14);

object
---------------------------
{"a":1,"b":true,"c":3.14}
(1 row)
               
select object('a', object('aa', 1), 'b', array(2,3), 'c', json_parse('{}'));
               
object
---------------------------------
{"a":{"aa":1},"b":[2,3],"c":{}}
(1 row)
            
-- Creates objects using columns from a table.
create table bar (k varchar, v super);
insert into bar values ('k1', json_parse('[1]')), ('k2', json_parse('{}'));
select object(k, v) from bar;

object
------------
{"k1":[1]}
{"k2":{}}
(2 rows)
            
-- Errors out because DATE type values can't be converted to SUPER type.
select object('k', '2008-12-31'::date);

ERROR:  OBJECT could not convert type date to super