"y":"txt3"}
(3 rows)
-SELECT row_to_json(q,pretty := true)
-FROM rows q;
- row_to_json
---------------
- {"x":1, +
- "y":"txt1"}
- {"x":2, +
- "y":"txt2"}
- {"x":3, +
- "y":"txt3"}
-(3 rows)
-
SELECT row_to_json(row((select array_agg(x) as d from generate_series(5,10) x)),false);
row_to_json
-----------------------
{"f1":[5,6,7,8,9,10]}
(1 row)
-WITH x AS (SELECT a,b,c FROM (VALUES(10,20,30),
- (10,NULL, NULL),
- (NULL, NULL, NULL)) g(a,b,c))
- SELECT row_to_json(x, false, false) FROM x;
- row_to_json
-------------------------------
- {"a":10,"b":20,"c":30}
- {"a":10,"b":null,"c":null}
- {"a":null,"b":null,"c":null}
-(3 rows)
-
-WITH x AS (SELECT a,b,c FROM (VALUES(10,20,30),
- (10,NULL, NULL),
- (NULL, NULL, NULL)) g(a,b,c))
- SELECT row_to_json(x, false, true) FROM x;
- row_to_json
-------------------------
- {"a":10,"b":20,"c":30}
- {"a":10}
- {}
-(3 rows)
-
-WITH x AS (SELECT a,b,c FROM (VALUES(10,20,30),
- (10,NULL, NULL),
- (NULL, NULL, NULL)) g(a,b,c))
- SELECT row_to_json(x, ignore_nulls := true) FROM x;
- row_to_json
-------------------------
- {"a":10,"b":20,"c":30}
- {"a":10}
- {}
-(3 rows)
-
-WITH x AS (SELECT a,b,c FROM (VALUES(10,20,30),
- (10,NULL, NULL),
- (NULL, NULL, NULL)) g(a,b,c))
- SELECT row_to_json(x, ignore_nulls := true, pretty := true) FROM x;
- row_to_json
--------------
- {"a":10, +
- "b":20, +
- "c":30}
- {"a":10}
- {}
-(3 rows)
-
-- to_json, timestamps
select to_json(timestamp '2014-05-28 12:22:35.614298');
to_json