Re: [GENERAL] Info about concurrent sequential scans

2010-02-22 Thread Daniele Varrazzo
On Mon, Feb 22, 2010 at 7:59 PM, Andreas Kretschmer wrote: > Daniele Varrazzo wrote: > >> Hello, >> >> at Prato PgDay in 2007 I remember hearing in a speech about a (then >> yet to come) "seqscan piggyback" feature, allowing concurrent >> sequential scans to use the same disk reads. I've now goog

Re: [GENERAL] Info about concurrent sequential scans

2010-02-22 Thread Andreas Kretschmer
Daniele Varrazzo wrote: > Hello, > > at Prato PgDay in 2007 I remember hearing in a speech about a (then > yet to come) "seqscan piggyback" feature, allowing concurrent > sequential scans to use the same disk reads. I've now googled for info > about this feature, but I found nothing conclusive (

Re: [GENERAL] Info about concurrent sequential scans

2010-02-22 Thread Bruce Momjian
Daniele Varrazzo wrote: > Hello, > > at Prato PgDay in 2007 I remember hearing in a speech about a (then > yet to come) "seqscan piggyback" feature, allowing concurrent > sequential scans to use the same disk reads. I've now googled for info > about this feature, but I found nothing conclusive (e.

[GENERAL] Info about concurrent sequential scans

2010-02-22 Thread Daniele Varrazzo
Hello, at Prato PgDay in 2007 I remember hearing in a speech about a (then yet to come) "seqscan piggyback" feature, allowing concurrent sequential scans to use the same disk reads. I've now googled for info about this feature, but I found nothing conclusive (e.g. [1], [2] - which I don't know whe