Re: Do we need multi-column frequency/histogram stats? WAS Re: [HACKERS] Statistics "dependency"

2017-04-23 Thread Tomas Vondra
On 04/23/2017 04:16 PM, Bruce Momjian wrote: On Sun, Apr 23, 2017 at 10:01:16AM -0400, Bruce Momjian wrote: On Sun, Apr 23, 2017 at 11:44:12AM +0100, Simon Riggs wrote: For us "functional dependency" would sound like something to do with functions (e.g. CREATE FUNCTION), so just "dependency" ap

Do we need multi-column frequency/histogram stats? WAS Re: [HACKERS] Statistics "dependency"

2017-04-23 Thread Bruce Momjian
On Sun, Apr 23, 2017 at 10:01:16AM -0400, Bruce Momjian wrote: > On Sun, Apr 23, 2017 at 11:44:12AM +0100, Simon Riggs wrote: > > For us "functional dependency" would sound like something to do with > > functions (e.g. CREATE FUNCTION), so just "dependency" appears to me > > to be the best term for