Re: Need Multixact Freezing Docs - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Need Multixact Freezing Docs
Date
Msg-id 20140905233936.GA20146@momjian.us
Whole thread Raw
In response to Re: Need Multixact Freezing Docs  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: Need Multixact Freezing Docs  (Bruce Momjian <bruce@momjian.us>)
List pgsql-hackers
On Wed, Sep  3, 2014 at 05:17:17PM -0400, Robert Haas wrote:
> > I had a look at this and came upon a problem --- there is no multi-xid
> > SQL data type, and in fact the system catalogs that store mxid values
> > use xid, e.g.:
> >
> >          relminmxid     | xid       | not null
> >
> > With no mxid data type, there is no way to do function overloading to
> > cause age to call the mxid variant.
> >
> > Should we use an explicit mxid_age() function name?  Add an mxid data
> > type?
>
> Maybe both.  But mxid_age() is probably the simpler way forward just to start.

OK, patch applied using mxid_age() and no new data type.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + Everyone has their own god. +

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