Insert array into a JSON column

This query fails

var q = adapter.query('INSERT INTO tbl_data (id, data) VALUES ($1, $2)', [ 1, ['a', 'b'] ] );

with

 error: undefined
      at Connection.parseE (/home/user/dev/node_modules/pg.js/lib/connection.js:534:11)
      at Connection.parseMessage (/home/user/dev/node_modules/pg.js/lib/connection.js:361:17)
      at Socket.<anonymous> (/home/user/dev/node_modules/pg.js/lib/connection.js:105:22)
      at Socket.emit (events.js:107:17)
      at readableAddChunk (_stream_readable.js:163:16)
      at Socket.Readable.push (_stream_readable.js:126:10)
      at TCP.onread (net.js:538:20)

The table is defined as

CREATE TABLE tbl_data
(
  id bigserial NOT NULL,
  data json,
  CONSTRAINT "PK_data" PRIMARY KEY (id)
)

(Note: the table is for tests only, and it illustrate the problem I am having in my project.)

Also, see #864

[yanickrochon]

The only solution I can think of is to execute the query like this :

var q = adapter.query('INSERT INTO tbl_data (id, data) VALUES ($1, $2)', [ 1, JSON.stringify(['a', 'b']) ] );

Which seems to work.

[yanickrochon]

Alright, closing this, now. It was a - character on a different line that caused NaN to be sent (i.e. -{}) This is not pg’s fault.