can we do function overloading to add functionality with savepoint option, i.e. with this both will be available and its app developers to chose
On Sat, Feb 20, 2016 at 11:01 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Bill Moran <wmoran@potentialtech.com> writes: > On Sat, 20 Feb 2016 16:29:09 +0000 > Vitalii Tymchyshyn <vit@tym.im> wrote: >> Well, I suppose replacing simple copy with procedural per-row function >> would give huge performance hit. Also what method do you propose to use in >> the code? Savepoints?
> Not at all. PL/PGSQL's ON ERROR handling can manage this without needing > savepoints.
Actually, plpgsql's exception blocks *are* savepoints under the hood. The backend engine does not have any way of recovering from errors other than a (sub)transaction abort, which means you can't do this without a savepoint or equivalent.