[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

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.g. [1],

Re: [GENERAL] Info about concurrent sequential scans

2010-02-22 Thread Andreas Kretschmer
Daniele Varrazzo daniele.varra...@gmail.com 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

Re: [GENERAL] Info about concurrent sequential scans

2010-02-22 Thread Daniele Varrazzo
On Mon, Feb 22, 2010 at 7:59 PM, Andreas Kretschmer akretsch...@spamfence.net wrote: Daniele Varrazzo daniele.varra...@gmail.com 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