Re: The enormous s->childXids problem - Mailing list pgsql-hackers

From Tom Lane
Subject Re: The enormous s->childXids problem
Date
Msg-id 14816.1158453269@sss.pgh.pa.us
Whole thread Raw
In response to Re: The enormous s->childXids problem  (Gregory Stark <gsstark@mit.edu>)
Responses Re: The enormous s->childXids problem  (Robert Treat <xzilla@users.sourceforge.net>)
List pgsql-hackers
Gregory Stark <gsstark@mit.edu> writes:
> Tom Lane <tgl@sss.pgh.pa.us> writes:
>> The real question is why does the subtransaction actually assign itself
>> an XID --- a simple RETURN NEXT operation ought not do that, AFAICS.

> I suspect the answer to that is the same as the answer to what's actually
> creating the subtransaction. plperl_return_next doesn't. I think something
> must be doing an actual SPI query, not just a return next.

The other question on the table is why it didn't respond to QueryCancel
in a reasonable amount of time.  I'd really like to see a complete test
case for this problem ...
        regards, tom lane


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