Re: Problem with Crosstab (Concatenate Problem)

>> For one of the countries, I have a value for 2007, but not for 1960.
>> When using only the inner query, than I see one line: Andorra - 2007
>> - 539 But when running the whole SQL, the value for year 2007 get's
>> allocated to the year 1960. The table looks as follows:
>>
>> name     |    y_1960    |   y_2007
>> Andorra  |       539    |   NULL
>
>
> That is documented behavior. See:
> http://www.postgresql.org/docs/8.4/interactive/tablefunc.html
>
> You probably want the other form of crosstab
>
>>
> F.33.1.4. crosstab(text, text)

Thanks a lot for the help. Indeed, that should be the one which should do it. Unfortunately, I ran into an error
message:

I have this query:

SELECT * FROM
    crosstab(
        'SELECT
            c.name AS name,
            d.year_start AS year,
            d.value AS value
        FROM
            co2_total_cdiac AS d
        RIGHT JOIN
            countries_view AS c ON c.id = d.id_country
        WHERE
            (d.year_start = 1960 OR d.year_start = 1965 OR d.year_start = 2003 OR d.year_start = 2007 )
        ORDER BY 1',

        'SELECT
            DISTINCT ''y_'' || year_start AS year
        FROM
            co2_total_cdiac AS d
        WHERE
            (d.year_start = 1960 OR d.year_start = 1965 OR d.year_start = 2003 OR d.year_start = 2007 )
        ORDER BY 1'
    )
    AS ct(name varchar, y_1960 numeric, y_1965 numeric, y_2003 numeric, y_2007 numeric)


Now, I get an error message:

ERROR:  invalid input syntax for integer: "SELECT
            DISTINCT 'y_' || year_start AS year
        FROM
            co2_total_cdiac AS d
        WHERE
            (d.year_start = 1960 OR d.year_start = 1965 OR d.year_start = 2003 OR d.year_start = 2007 )
        ORDER BY 1"
LINE 15:   'SELECT
          ^


I need to convert the integer values for the years into column names, i.e. "1965" into "y_1965". How do I achieve this
then?

Thanks for any help!

Stef