Re: Object serialization and postgres tables,
Re: Object serialization and postgres tables,
От:
Dave Cramer <pg@fastcrypt.com>
Дата:
We dropped it because nobody was using it. And it added complexity to the driver. Dave On Sat, 2004-02-14 at 11:43, Kash wrote: > I've been asked to store some java objects in a postgresql database so that > the individual fields are accessible. After a little poking around I found > mentions of org.postgreql.util.Serialize in the postgres JDBC extensions. > > I tried to use the create() method to generate tables matching the object I > wanted to store, but no luck. More research turned up mentions that the > code did not work as advertised and other comments that it would be deleted > in future releases. > > Sure enough, running jar on the files available at > http://jdbc.postgresql.org shows that in releases above 7.3 , > org/postgresql/util/Serialize.class is missing. > > Tantalizingly, in the postgresql 7.4 release notes under JDBC there is an > entry 'serialize addition', and in a CVS log 'Removed deprecated Serialize > functionality'. > > I can find no explanation of whether or how the functionality has been > replaced. Mapping objects to tables seems so broadly useful that I can't > imagine it's just been dropped. Does anyone know? > > > ---------------------------(end of broadcast)--------------------------- > TIP 8: explain analyze is your friend > -- Dave Cramer 519 939 0336 ICQ # 14675561
Object serialization and postgres tables, org.postgresql.util.Serialize.create() method depreciated?
От:
Kash <bikevalets@sfbike.org>
Дата:
I've been asked to store some java objects in a postgresql database so that the individual fields are accessible. After a little poking around I found mentions of org.postgreql.util.Serialize in the postgres JDBC extensions. I tried to use the create() method to generate tables matching the object I wanted to store, but no luck. More research turned up mentions that the code did not work as advertised and other comments that it would be deleted in future releases. Sure enough, running jar on the files available at http://jdbc.postgresql.org shows that in releases above 7.3 , org/postgresql/util/Serialize.class is missing. Tantalizingly, in the postgresql 7.4 release notes under JDBC there is an entry 'serialize addition', and in a CVS log 'Removed deprecated Serialize functionality'. I can find no explanation of whether or how the functionality has been replaced. Mapping objects to tables seems so broadly useful that I can't imagine it's just been dropped. Does anyone know?
