Cannot INSERT: ERROR: array value must start with “{” or dimension information

Question

journeypost=# INSERT INTO user_data.user_data (username,randomint) VALUES (\'mahman\',1);
ERROR:  array value must start with \"{\" or dimension information
LINE 1:          


        

Answer 1

Your column username seems to be an array type, so the literal 'mahman' is not valid input for it.

It would have to be '{mahman}':

INSERT INTO user_data.user_data (username,randomint)
VALUES ('{mahman}',1);

(Or make it a plain varchar column or text column instead.)

Update confirms it: character varying(50)[] is an array of character varying(50).