Re: ALTER TABLE schema SCHEMA TO new_schema?

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От Joe Conway
Тема Re: ALTER TABLE schema SCHEMA TO new_schema?
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Msg-id 3DE9A8F5.5090406@joeconway.com
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Ответ на Re: ALTER TABLE schema SCHEMA TO new_schema?  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom Lane wrote:
> Joe Conway <mail@joeconway.com> writes:
>>Someone asked earlier about how to change a bunch of existing tables int the 
>>PUBLIC schema to some other schema. For grins I tried:
>>regression=# update pg_class set relnamespace=556829 where relname = 'foo' and 
>>relnamespace=2200;
>>UPDATE 1
> 
>>and it seemed to work fine (i.e. moved foo from schema public to schema bar).
> 
> But it didn't fix the pg_depend entries linking the table to its schema :-(

Yeah, I knew there was something I was forgetting. That's why I didn't 
actually offer it up as a solution to anyone.

>>But it made me wonder if we shouldn't have:
>>   ALTER TABLE table SCHEMA TO new_schema
> 
> I was thinking more along the lines of ALTER TABLE a.b RENAME TO x.y
> 
> I don't see anything in the SQL spec about this; anyone know what
> precedent is in Oracle or other DBMSes?

Good question. I can't find anything in the Oracle docs indicating it is even 
possible. We should probably just go with your suggestion. Anything else 
beyond the relnamespace and pg_depend entries that need to be dealt with?

Joe




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