const queryAddress = (type) => `
    LEFT JOIN (
        SELECT address_field.address_id, address_field.message_id
        FROM address_field 
        INNER JOIN field_name 
        WHERE 
            field_name.field_id = address_field.field_id AND
            field_name.field_name = '${type}'
    )
`;

const queryFromId = queryAddress("from");
const queryToId = queryAddress("to");
const queryCcId = queryAddress("cc");

module.exports = {
    queryFromId,
    queryToId,
    queryCcId
}