function [data] = pg_query(conn, numeric, statement, varargin)
% Performs query on database initiated with conn
%
% [data] = pg_query(conn, numeric, statement, varargin)
% data: return data
% conn: conn object from pg_connect
% numeric: return data are numeric if set to 1, otherwise cell
% statement: SQL statement formatted for sprintf
% varargin: variable number of arguments for the SQL statement
%

var = [];

if ( length(varargin) > 0 )
    stat = sprintf(statement, varargin{:});
else
    stat = statement;
end
% stat

if numeric > 0
    setdbprefs('DataReturnFormat','numeric');
else
    setdbprefs('DataReturnFormat','cellarray');
end

curs = exec(conn, stat);

curs_data = fetch(curs);

data = curs_data.Data;