Обсуждение: contrib/tablefunc crosstab

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contrib/tablefunc crosstab

От
Caleb Simonyi-Gindele
Дата:
Hi,

I am using the crosstab function by Joe Conway and I am having a problem
that could be my fault but I'm not sure.

My query/result is:

atc=# SELECT * FROM crosstab('SELECT cli_tran_trans_date,
TRIM(dat_staff_code) AS dat_staff_code, SUM(cli_tran_amount) from vetpmardet
WHERE cli_tran_trans_date BETWEEN ''2003-06-01'' AND ''2003-06-05'' AND
TRIM(dat_staff_code) NOT LIKE '''' GROUP BY cli_tran_trans_date,
dat_staff_code ORDER BY 1,2;',5) AS vetpmardet(date date, vet1 numeric, vet2
numeric, vet3 numeric, vet4 numeric, vet5 numeric);
   date    |  vet1  |  vet2   |  vet3   |  vet4  |  vet5
------------+--------+---------+---------+--------+--------2003-06-01 | 561.99 |         |         |        |2003-06-02
|418.43 |  548.10 |  790.16 |  54.24 | 467.072003-06-03 | 518.62 | 2115.57 |  630.83 | 195.74 | 548.262003-06-04 |
870.52|  346.49 |  393.77 | 470.02 |2003-06-05 |  74.37 | 3555.10 | 1248.69 | 758.18 |
 
(5 rows)

My problem is that the rows are populated from right to left irrespective of
the column. So the $561.99 in vet1 actually belongs to vet2. There are never
any blank cells in the middle or start of a row - they always come at the
end. How do I get the amount for that date into the appropriate column?

I am using 7.4.3

Caleb 




Re: contrib/tablefunc crosstab

От
Joe Conway
Дата:
Caleb Simonyi-Gindele wrote:
> My problem is that the rows are populated from right to left irrespective of
> the column. So the $561.99 in vet1 actually belongs to vet2. There are never
> any blank cells in the middle or start of a row - they always come at the
> end. How do I get the amount for that date into the appropriate column?

You either need to be sure there are no "gaps" in your source rows 
(provide one row for every category for each group, e.g. by doing an 
outer join) or use the hashed version of the function. Search the README 
for:

crosstab(text source_sql, text category_sql)

That is the hashed version that will do what you're looking for.

HTH,

Joe