On 6/13/17 10:57, Tom Lane wrote:
> I wrote:
>> Peter Eisentraut <pete...@gmx.net> writes:
>>> Fix collprovider of predefined collations
>>> An earlier version of the patch had collprovider as an integer and thus
>>> set these to 0, but the correct setting is now null.
> 
>> Surely this is not right.  Neither collprovider nor the other fixed-length
>> fields following it in pg_collation are marked nullable, and most of them
>> are accessed as struct fields so that's not an easy thing to change.
> 
> Ah, on looking closer, I see what the patch actually changes to null is
> collversion not collprovider.  So the patch is ok, the commit message
> not so much.

yup :(

>> The fact that the buildfarm didn't blow up is a bit odd.  Maybe we're
>> missing some enforcement somewhere?
> 
> As penance for the false alarm, I looked into that angle and indeed we
> didn't have any cross-check against storing NULL from the BKI data into
> a putatively not null column.  We do now.

great

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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