From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
---|---|
To: | Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> |
Cc: | Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-committers(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: pgsql: Add lock matrix to documentation. |
Date: | 2007-02-09 14:30:23 |
Message-ID: | 45CC857F.70104@dunslane.net |
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Lists: | pgsql-committers pgsql-hackers |
Oleg Bartunov wrote:
> On Fri, 9 Feb 2007, Peter Eisentraut wrote:
>
>> Am Donnerstag, 8. Februar 2007 16:32 schrieb Bruce Momjian:
>>> Log Message:
>>> -----------
>>> Add lock matrix to documentation.
>>
>> This needs some revisions. The table needs to be mentioned somewhere
>> in the
>> text, so the reader knows when or why to refer to it. Also, the cryptic
>> abbreviations need to be expanded or explained. And then the concept of
>> lock "compatibility", as the table puts it, is not used anywhere else
>> in the
>> documentation. The table should be put in terms of conflicts instead.
>>
>
> Another version with expanded abbreviations is
> http://mira.sai.msu.su/~megera/pgsql/lockmatrix/c2.html, if remove
> UPDATE EXCLUSIVE.
>
> While compatibility matrix is a commonly accepted termin, I agree,
> that using conficts would be better in context of our docs.
>
>
If UE is moved 2 or 3 places down/right, the matrix will be closer to
triangular.
It would look better with non-conflicts being blank (or in HTML)
rather than 'O', I think - the conflicts will stand out more.
cheers
andrew
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