From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Implicit casts to text |
Date: | 2007-04-02 07:17:49 |
Message-ID: | 26508.1175498269@sss.pgh.pa.us |
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Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> The attached patch changes all implicit casts to text to assignment and
> cleans up the associated regression test damage. This change has been
> discussed for the longest time; I propose that we bite the bullet and
> do it now.
[ I'm assuming this isn't an April-fool item, otherwise never mind ]
The scheme that was in the back of my mind was to do this at the same
time as providing a general facility for casting *every* type to and
from text, by means of their I/O functions if no specialized cast is
provided in pg_cast. This would improve functionality, thus providing
a salve to the annoyance of users whose code the restriction breaks:
we can certainly argue that it wouldn't do for all those automatically
created casts to be implicit. At the same time it'd let us eliminate
redundant text-to/from-foo code that's currently in place for some but
not all datatypes.
If we do only the restrictive part of this, it's a harder sale.
So, +1 on the concept, but I think we want a larger patch, and it's
probably too late for that for 8.3.
regards, tom lane
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