Functions / Json Functions And Operators

json_scalar

Converts a given SQL scalar value into a JSON scalar value.

Reading PG 18current·documented in 4 of 27 versions, 17 to 20

7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4 9.0 9.1 9.2 9.3 9.4 9.5 9.6 10 11 12 13 14 15 16 17 18 19 20

Signatures & examples

json_scalar ( expression )

Converts a given SQL scalar value into a JSON scalar value. If the input is NULL, an SQL null is returned. If the input is number or a boolean value, a corresponding JSON number or boolean value is returned. For any other value, a JSON string is returned.

json_scalar(123.45) → 123.45

json_scalar(CURRENT_TIMESTAMP) → "2022-05-10T10:51:04.62128-04:00"

Version history 1

16 → 17 added

Definition snapshot: 2026-09-14T13:14:25.684213+00:00@99e6866c · English manual source