[postgis-users] oid field

[Ezequias Rodrigues da Rocha]

No,

The PostGIS driver on OpenJUMP does not takes care of it yet. My problem 
is the Mapserver (a web server thar connects with a PostGIS database).

OpenJUMP can save and retrieve later, but mapserver needs this kind of 
data to exibit a map on the web or on OpenJUMP.

Thank you

Ezequias

Aaron Koning escreveu:
> Version 8.1 doesn't create the oid field by default. I'm not sure how 
> to generate a system oid field, but you can always do: ALTER TABLE xyz 
> ADD COLUMN oid serial; I'm not sure if this fills in the oid value for 
> each row, or whether you have to do that after the fact.
>
> oid is a sort of system field that, when created by default, isn't 
> displayed with "\d". Not sure why.
>
> When using JUMP, does a unique id field get created? With shp2pgsql 
> GID is created and thats good enough for unique identification of rows...
>
> Aaron
>
>
> On 6/20/06, *Ezequias Rodrigues da Rocha* <ezequias at recife.pe.gov.br 
> <mailto:ezequias at recife.pe.gov.br>> wrote:
>
>     Aaron,
>
>     When you tell new versions you mean 8.1 ?
>
>     Another question, why this field does not appears in a "\d" command ?
>     and how to generate this field if my application does not
>     generated it ?
>
>
>
>     Regards
>
>
>     Aaron Koning escreveu:
>     > 'oid' is a database generated field containing unique values
>     (one for
>     > each row). In previous versions of PostgreSQL it was created by
>     > default, however in newer versions it is not generated by
>     default. The
>     > shp2pgsql loader creates a 'gid' field that also contains unique
>     > values, therefore the need for oid is moot ( i.e. use gid
>     instead of oid).
>     >
>     > Aaron
>     >
>     > On 6/19/06, *Ezequias Rodrigues da Rocha* <
>     ezequias at recife.pe.gov.br <mailto:ezequias at recife.pe.gov.br>
>     > <mailto:ezequias at recife.pe.gov.br
>     <mailto:ezequias at recife.pe.gov.br>>> wrote:
>     >
>     >     Could someone tell me what oid field does ?
>     >
>     >     I am using JUMP to load data into PostGIS and it is not
>     generating
>     >     this
>     >     king of column.
>     >
>     >     I just think it is a problem is becouse didn't load the
>     >     spatial_ref_sys
>     >     table yet.
>     >
>     >
>     >     Sincerely
>     >     Ezequias
>     >
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>     >
>     > --
>     > +--------------------------------------------
>     > |  Aaron Koning
>     > |  Information Technologist
>     > |  Prince George, BC, Canada.
>     > +--------------------------------------------
>     > |  http://datashare.gis.unbc.ca/fist/
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>     --
>     Ezequias Rodrigues da Rocha
>     http://ezequiasrocha.blogspot.com
>     msn:ezequias at hotmail.com <mailto:msn:ezequias at hotmail.com>
>     "the worst of democracies is still better than the best of
>     dictatorship"
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> -- 
> +--------------------------------------------
> |  Aaron Koning
> |  Information Technologist
> |  Prince George, BC, Canada.
> +--------------------------------------------
> |  http://datashare.gis.unbc.ca/fist/
> |  http://datashare.gis.unbc.ca/gctp-js/ 
> <http://datashare.gis.unbc.ca/gctp-js/>
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-- 
Ezequias Rodrigues da Rocha
http://ezequiasrocha.blogspot.com
msn:ezequias at hotmail.com
"the worst of democracies is still better than the best of dictatorship"