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Hi there, I run an aggregation on national statistics to retrieve regional values (for Africa, Europe, ...). Now, I want to have a global aggregation as well. The easiest thing for my PHP/HTML procedure would be to have the global row make appear within the regional result. So it would be something like name | y_2001 | y_2002 ..... -------------------------------------------------------- Africa | 2323 | 342323 Europe | .... ..... Global | 849309 | ..... The global total can be derived by for example be letting out the COALESCE and GROUP BY r.name parameters in the SQL below and using UNION ALL to attach this then as second query. But then, there is one column less - the one for the regional name. SELECT * FROM crosstab( ' SELECT COALESCE(r.name, ''''), year_start AS year, SUM(value) AS value FROM co2_total_cdiac AS d RIGHT JOIN countries_view AS c ON c.id = id_country RIGHT JOIN regions AS r ON r.id = c.reg_id WHERE year_start = 2001 OR year_start = 2002 OR year_start = 2003 GROUP BY r.name, year_start ORDER BY 1,2; ', 3) AS ct(name varchar, y_2001 numeric, y_2002 numeric, y_2003 numeric) ORDER BY name ASC Is there a way to substitute this with a "static" value, such as "Global"? So, that the query still results in three columns? Thanks for any advice! Stef ____________________________________________________________________
Stefan Schwarzer Lean Back and Relax - Enjoy some Nature Photography: Appetite for Global Data? UNEP GEO Data Portal: ____________________________________________________________________ |
