Re: pg_migrator issues

Alvaro Herrera wrote:
> Bruce Momjian escribi?:
>
> > I considered that but realize that pg_migrator has to read
> > pg_controldata in both the old and new servers, meaning it would need
> > access to both C structures, and considering they both have the same
> > structure names, that would require some odd C tricks. Add to that you
> > don't know which version of Postgres you are migrating from/to during
> > compile and the idea of using C becomes even less attractive.
>
> However, keep in mind that this might not be the last time on which we
> will want to read something from a C struct, so perhaps it would be good
> to bite the bullet and write the odd tricks. Does it already have
> access (at compile time) to the old and new source trees?

No, only the new soure tree, or actually any source tree, but ideally
the new one. Remember we have Win32 binaries being built, and right now
there is limited linkage between pg_migrator and the backend code.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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