From: | David Fetter <david(at)fetter(dot)org> |
---|---|
To: | Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com> |
Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: per-column generic option |
Date: | 2011-06-27 23:42:20 |
Message-ID: | 20110627234220.GB11795@fetter.org |
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Lists: | pgsql-hackers |
On Fri, Jun 17, 2011 at 05:59:31AM -0700, David Fetter wrote:
> On Fri, Jun 17, 2011 at 07:19:39PM +0900, Shigeru Hanada wrote:
> > > Here's an example of a non-trivial mapping.
> > >
> > > Database type:
> > > MySQL
> > > Foreign data type:
> > > datetime
> > > PostgreSQL data type:
> > > timestamptz
> > > Transformation direction:
> > > Import
> > > Transformation:
> > > CASE
> > > WHEN DATA = '0000-00-00 00:00:00'
> > > THEN NULL
> > > ELSE DATA
> > > END
> > >
> > > Here, I'm making the simplifying assumption that there is a bijective
> > > mapping between data types.
Any word on this?
Cheers,
David.
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David Fetter <david(at)fetter(dot)org> http://fetter.org/
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