Re: Details for planned template0/template1 change

From: Philip Warner <pjw(at)rhyme(dot)com(dot)au>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Details for planned template0/template1 change
Date: 2000-11-15 04:59:38
Message-ID: 3.0.5.32.20001115155938.03562950@mail.rhyme.com.au
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At 23:48 14/11/00 -0500, Tom Lane wrote:
>Philip Warner <pjw(at)rhyme(dot)com(dot)au> writes:
>>> Given the present backend coding, all the DBs in an installation will
>>> have the same lastsysoid as template0 anyway, barring manual
>>> intervention.
>
>> Not the way the current 'CREATE DATABASE' code works - remember the changes
>> to set the OID at create time? AFAICT, that's still there.
>
>Look again. lastsysoid is now inherited from the database being cloned.

It looks to me like that was the intent of the code; but there is still:

tuple = heap_formtuple(pg_database_dsc, new_record, new_record_nulls);

tuple->t_data->t_oid = dboid; /* override heap_insert's OID
selection */

heap_insert(pg_database_rel, tuple);

which I think stuffs up everything, since dboid was allocated earlier in
the same call. But I agree, the code looks like it tries to do what you said.

I could have missed something, though.

>AFAICT all your subsequent comments are based on that
>misunderstanding...

Pretty much. Sorry. Is there a smiley for embarrasment?

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