On Fri, 4 Feb 2005 12:48:43 -0500, Merlin Moncure
[EMAIL PROTECTED] wrote:
Alexandre Leclerc wrote:
Sorry for jumping in on this thread so late -- I haven't been able to
select * from crosstab(
'select product_id, department_id, req_time
from product_department_time order by 1',
'select ''A'' union all select ''C'' union all select ''D'''
) as (product_id int, a int, c int, d int);
I forgot you could do this...This would certainly be easier than parsing
array values returned from array_accum. It will probably be faster as
well...but with the array approach the query would not have to be
modified each time a new department was added. That said, a crosstab
based query could be built easily enough from a department query on the
client and then you have the best of both worlds.
Hello Merlin,
Well, I'm glad because with all this i've learn a lot of new things.
Finally, the crosstab solution is very fast and is simple for me to
use. I get my super-bug-jumbo-dbkiller-query run in about 210ms
(seeking many tables and so). I had a score of 2480ms before. (This is
a much more complex query; the cross table thing had to be included in
this one.) This is much better! :)
In all, thanks for your help. Regards.
--
Alexandre Leclerc
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