• Data Warehouse Service

dws
  1. Help Center
  2. Data Warehouse Service
  3. Developer Guide
  4. SQL Reference
  5. Functions and Operators
  6. JSON Functions

JSON Functions

JSON functions are available for creating JSON data (see JSON Types).

  • array_to_json(anyarray [, pretty_bool])

    Description: Returns the array as JSON. A multi-dimensional array becomes a JSON array of arrays. Line feeds will be added between dimension-1 elements if pretty_bool is true.

    Return type: json

    For example:

    SELECT array_to_json('{{1,5},{99,100}}'::int[]);
    array_to_json
    ------------------
    [[1,5],[99,100]]
    (1 row)
  • row_to_json(record [, pretty_bool])

    Description: Returns the row as JSON. Line feeds will be added between level-1 elements if pretty_bool is true.

    Return type: json

    For example:

    SELECT row_to_json(row(1,'foo'));
         row_to_json     
    ---------------------
     {"f1":1,"f2":"foo"}
    (1 row)