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List:       postgresql-general
Subject:    Re: [HACKERS] Are we losing momentum?
From:       Sailesh Krishnamurthy <sailesh () cs ! berkeley ! edu>
Date:       2003-04-24 5:49:20
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>>>>> "scott" == scott marlowe <scott.marlowe> writes:

    scott> Plus the fact that the underlying pg_ tables are stable
    scott> from release to release makes it a bit awkward to upgrade
    scott> the servers they play on.  Most of them have gone ahead and
    scott> created views that give them a consistent view of the parts
    scott> of the database they need.

This is exactly the reason why in db2 _no_ guarantees are made
regarding the constancy of the system catalogs (that are in the SYSIBM
schema). Instead, the equivalent views (in the SYSCAT schema) are
_never_ broken (whether in a point release or a new version). In fact,
the SYSCAT views correspond to the ISO SQL standard. 

-- 
Pip-pip
Sailesh
http://www.cs.berkeley.edu/~sailesh


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