How to return an array of values from a function?

Hi All,

I wish to return an array of values. Assume, I have a table called contacts. I want to display all the names available from a column in the UI. Hence I need to return that column as an array of values. Please correct me if there is any other solution exist.

Here is the code, I'm trying to execute:

CREATE OR REPLACE FUNCTION get_all_names()
RETURNS TEXT[] AS '
DECLARE
group_data TEXT[];
BEGIN
SELECT display_name INTO group_data FROM contacts;
RETURN group_data;
END;
'LANGUAGE 'plpgsql';

During compilation, I got the below error:

ERROR: array value must start with "{" or dimension information
CONTEXT: PL/pgSQL function "get_all_ names " line 4 at SQL statement

Regards,
Siva.

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