Обсуждение: Crosstab function Problem

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Crosstab function Problem

От
"Kuldeep Tanna"
Дата:
Hi,
    I am having problem using the crosstab function ( which is under the contrib/tablefunc directory). I have installed the tablefunc module and also installed the functions into my DB.
I am using postgresql 7.4 beta version.
 
I am issuing the following query,
 
select *
from crosstab(
'select path,name,value
from file f, metadata m
where f.id = m.file_id
and f.type=1
order by 1,2;',3)
AS DP(name text,runid text, plottype text,region text) ;
I am getting the following error message.
    No function matches the given name and argument types. You may need to add explicit typecasts.
 
I also issued the given example in the tablefunc directory and it gave the same error.
 
Help me out with this,
Kuldeep.
 
 
 

Re: Crosstab function Problem

От
Richard Huxton
Дата:
On Wednesday 03 September 2003 01:13, Kuldeep Tanna wrote:
> Hi,
>     I am having problem using the crosstab function ( which is under the
> contrib/tablefunc directory). I have installed the tablefunc module and
> also installed the functions into my DB. I am using postgresql 7.4 beta
> version.
>
> I am issuing the following query,
[snip]
> I am getting the following error message.
>     No function matches the given name and argument types. You may need to
> add explicit typecasts.

From psql try:

\df cross*

This should list all functions starting with "cross" - if you don't see it,
the installation didn't work. If it is there, try casting the parameters:

SELECT * FROM crosstab('...'::text,3) AS...

That's assuming it takes a text for the first param, I suppose it could be
varchar.
--
  Richard Huxton
  Archonet Ltd