Postgres itself doesn't support nested transactions.
Robert Creager wrote:
> On Mon, 11 Aug 2003 11:05:57 -0400
> Tom Lane <tgl@sss.pgh.pa.us> said something like:
>
>
>>If you really want to rebuild only the one index, I think this will work:
>>
>>begin;
>>lock table tab;
>>reindex index ndx;
>>commit;
>
>
> Figures. It appears that DBD::Pg doesn't supported nested transactions (I was
> already in a transaction).
>
> DBD::Pg::db begin_work failed: Already in a transaction at
> /tass/bin/importSList.pl line 445.
>
> Unfortunatly, it does take longer overall because of the second index on the
> table, but it always works ;-) 'Nother duh moment, delete the second index,
> and then it works just fine speed wise. Guess I need to re-examine my index
> usage...
>
> Thanks,
> Rob
>
