Alban Hertroys escribió:
On 6 Dec 2009, at 4:13, Scott Marlowe wrote:
On Sat, Dec 5, 2009 at 12:11 PM, Jose Maria Terry Jimenez
<j...@tssystems.net> wrote:
Hello all,
I'm trying to do a crosstab from data that row names are times.
These times are timestamps and i want to use they truncating to minutes
this works for me:
select distinct date_trunc('minute',"timestamp") as "timestamp" from
historico order by "timestamp";
Getting times "normalized" without seconds.
If i do a crosstab using that date_trunc function i get errors. If i do:
select *
from crosstab
(
'select date_trunc('minute',"timestamp") as "timestamp",remota,valor from
historico order by 1,2'
)
as
(anet timestamp without time zone,
re1 numeric,
re2 numeric,
re3 numeric
)
;
Looks like an escaping issue. Try replacing your outer ' with $outer$
or something like that:
It _is_ an escaping issue. The part inside the crosstab consists of 3 literals,
namely:
'select date_trunc('
minute
',"timestamp") as "timestamp",remota,valor from historico order by 1,2'
You need to escape the quotes around 'minute', either by typing ''minute'' or
by using a different quote method for the outer literal as Scott suggested.
Your last option is the non-standard \' escaping.
Alban Hertroys
--
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cut the trees and you'll see there is no forest.
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Thank you very much. This worked for me.
Best,
Jose Maria
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