Re: transpose time-series columnar data
| От | Cachique |
|---|---|
| Тема | Re: transpose time-series columnar data |
| Дата | |
| Msg-id | CAEfeRhVcEa=UtLtGE1TAF14DTWLSsqya1Oo_r4qptJHCDUPf2A@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: transpose time-series columnar data ("David G. Johnston" <david.g.johnston@gmail.com>) |
| Список | pgsql-general |
As suggested by David I would use Tablefunc.
This query should work.
select * from crosstab (
'select timestamp, name, value from originaltable',
'select distinct name from originaltable order by name'
)
as transposedtable (timestamp varchar, name1 varchar, name2 varchar, name3 varchar)
'select timestamp, name, value from originaltable',
'select distinct name from originaltable order by name'
)
as transposedtable (timestamp varchar, name1 varchar, name2 varchar, name3 varchar)
Regards,
Walter
El mar, 17 de ago. de 2021 a la(s) 14:42, David G. Johnston (david.g.johnston@gmail.com) escribió:
On Tue, Aug 17, 2021 at 11:29 AM Edu Gargiulo <egargiulo@gmail.com> wrote:I need to transpose and return one row for a single timestamp and one column for every name (fixed number of names), something like thisorselect ..., max(value) filter (where name = 'name1') as name1, max(value) filter (where name = 'name2') as name2, etc from tbl group by ...David J.
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