Re: Removing savepointLevel from TransactionState

On Thu, Sep 29, 2011 at 10:52 AM, Gurjeet Singh <singh.gurjeet@gmail.com> wrote:
> On Thu, Sep 29, 2011 at 1:11 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>
>> Gurjeet Singh <singh.gurjeet@gmail.com> writes:
>> > I noticed that the savepointLevel member of TransactionStateData struct
>> > is
>> > initialized to 0 from TopTransactionStateData, and never incremented or
>> > decremented afterwards.
>>
>> > Since this is a file-local struct I think we can simply get rid of all
>> > usages of this without any risk.
>>
>> ISTM you have detected a bug, not just dead code that should be removed.
>> Surely those tests that throw error on savepointLevel change were
>> meant to do something important?
>
> That's surprising for dead-code removal!
>
> Not sure which failures you're pointing to. `make check` before and after
> the patch on master says 'All 126 tests passed.'
>

I think Tom is talking about the test in the code and not a regression
test itself. Looking at the archives and git log, it seems though that
we never completed this feature and the code was always dead since its
inception.

http://www.mail-archive.com/pgsql-hackers@postgresql.org/msg48321.html

Thanks,
Pavan
--
Pavan Deolasee
EnterpriseDB     http://www.enterprisedb.com