Re: [HACKERS] Regarding identifying a foreign scan

2012-10-08 Thread Merlin Moncure
On Sun, Oct 7, 2012 at 10:29 AM, Tom Lane t...@sss.pgh.pa.us wrote: Atri Sharma atri.j...@gmail.com writes: Does that mean that using (some) global storage is the cause of the problem? If you're using global storage for state that needs to be replicated per-scan, yes, probably. But it's hard

Re: [HACKERS] Regarding identifying a foreign scan

2012-10-07 Thread Tom Lane
Atri Sharma atri.j...@gmail.com writes: Does that mean that using (some) global storage is the cause of the problem? If you're using global storage for state that needs to be replicated per-scan, yes, probably. But it's hard to be sure when you're being so vague about what you're doing.

[HACKERS] Regarding identifying a foreign scan

2012-10-06 Thread Atri Sharma
Hi, I am trying to identify foreign scans uniquely.I am trying to do that by struct ForeignScanState,but I am confused as to how I can identify the scan. Is there a member of ForeignScanState that can be used for this purpose? Atri -- Regards, Atri l'apprenant -- Sent via pgsql-hackers

Re: [HACKERS] Regarding identifying a foreign scan

2012-10-06 Thread Tom Lane
Atri Sharma atri.j...@gmail.com writes: I am trying to identify foreign scans uniquely. What do you mean by identify? What are you trying to accomplish, and in what context? regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To

Re: [HACKERS] Regarding identifying a foreign scan

2012-10-06 Thread Atri Sharma
On Sat, Oct 6, 2012 at 3:45 PM, Tom Lane t...@sss.pgh.pa.us wrote: Atri Sharma atri.j...@gmail.com writes: I am trying to identify foreign scans uniquely. What do you mean by identify? What are you trying to accomplish, and in what context? regards, tom lane Hi

Re: [HACKERS] Regarding identifying a foreign scan

2012-10-06 Thread Tom Lane
Atri Sharma atri.j...@gmail.com writes: On Sat, Oct 6, 2012 at 3:45 PM, Tom Lane t...@sss.pgh.pa.us wrote: Atri Sharma atri.j...@gmail.com writes: I am trying to identify foreign scans uniquely. What do you mean by identify? What are you trying to accomplish, and in what context? I am

Re: [HACKERS] Regarding identifying a foreign scan

2012-10-06 Thread Atri Sharma
On Sat, Oct 6, 2012 at 4:05 PM, Tom Lane t...@sss.pgh.pa.us wrote: Atri Sharma atri.j...@gmail.com writes: On Sat, Oct 6, 2012 at 3:45 PM, Tom Lane t...@sss.pgh.pa.us wrote: Atri Sharma atri.j...@gmail.com writes: I am trying to identify foreign scans uniquely. What do you mean by identify?

Re: [HACKERS] Regarding identifying a foreign scan

2012-10-06 Thread Tom Lane
Atri Sharma atri.j...@gmail.com writes: The issue I am trying to resolve is that if two scans are taking place on the same backend(due to the same query),then,the server is crashing. That sounds like an FDW bug ... which FDW are we talking about? I think it is because I am not saving the