From: | Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> |
---|---|
To: | "Vladimir S(dot) Petukhov" <vladimir(at)sycore(dot)org> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Change type |
Date: | 2005-01-18 18:25:34 |
Message-ID: | Pine.GSO.4.61.0501182124510.12633@ra.sai.msu.su |
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Lists: | pgsql-general |
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On Tue, 18 Jan 2005, Vladimir S. Petukhov wrote:
> Hi!
> Sorry for my English..
> I want to dinamcly change type of column. If possible, of course.Trivial idia - create new temporary column, try to write value from old columt to temporarity (if type conersion ok - this made using select/update command and type conversion checks on client's side), then delete old column, and rename temporary column.. But this decision looked quite ill...
> Do you have better idea?
hmm,
you may use generic type like 'varchar' to store your data
> -- Я доcтаю из шиpоких штанин,В котоpых гpажданка одета,Воcемь ноpмальных. И двадцать одинЗапpещенных к ношенью пpедмета!
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> ---------------------------(end of broadcast)---------------------------TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
>
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83
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