On Mon, Jul 01, 2019 at 12:02:28PM +0100, Dean Rasheed wrote:
On Sat, 29 Jun 2019 at 14:01, Tomas Vondra wrote:
>However, it looks like the problem is with mcv_list_items()'s use
>of %f to convert to text, which is pretty ugly.
>>>There's one issue with the signature, though - cur
On Sat, 29 Jun 2019 at 14:01, Tomas Vondra wrote:
>
> >However, it looks like the problem is with mcv_list_items()'s use
> >of %f to convert to text, which is pretty ugly.
>
> >>>There's one issue with the signature, though - currently the function
> >>>returns null flags as bool arra
On Tue, Jun 25, 2019 at 11:18:19AM +0200, Tomas Vondra wrote:
On Mon, Jun 24, 2019 at 02:54:01PM +0100, Dean Rasheed wrote:
On Mon, 24 Jun 2019 at 00:42, Tomas Vondra wrote:
On Sun, Jun 23, 2019 at 10:23:19PM +0200, Tomas Vondra wrote:
On Sun, Jun 23, 2019 at 08:48:26PM +0100, Dean Rasheed w
On Mon, Jun 24, 2019 at 02:54:01PM +0100, Dean Rasheed wrote:
On Mon, 24 Jun 2019 at 00:42, Tomas Vondra wrote:
On Sun, Jun 23, 2019 at 10:23:19PM +0200, Tomas Vondra wrote:
>On Sun, Jun 23, 2019 at 08:48:26PM +0100, Dean Rasheed wrote:
>>On Sat, 22 Jun 2019 at 15:10, Tomas Vondra
wrote:
>>>
On Mon, 24 Jun 2019 at 00:42, Tomas Vondra wrote:
>
> On Sun, Jun 23, 2019 at 10:23:19PM +0200, Tomas Vondra wrote:
> >On Sun, Jun 23, 2019 at 08:48:26PM +0100, Dean Rasheed wrote:
> >>On Sat, 22 Jun 2019 at 15:10, Tomas Vondra
> >>wrote:
> >>>One annoying thing I noticed is that the base_freque
On Mon, Jun 24, 2019 at 01:42:32AM +0200, Tomas Vondra wrote:
On Sun, Jun 23, 2019 at 10:23:19PM +0200, Tomas Vondra wrote:
On Sun, Jun 23, 2019 at 08:48:26PM +0100, Dean Rasheed wrote:
On Sat, 22 Jun 2019 at 15:10, Tomas Vondra wrote:
One annoying thing I noticed is that the base_frequency t
On Sat, Jun 22, 2019 at 04:10:52PM +0200, Tomas Vondra wrote:
On Fri, Jun 21, 2019 at 08:50:33AM +0100, Dean Rasheed wrote:
On Thu, 20 Jun 2019 at 23:35, Tomas Vondra wrote:
On Thu, Jun 20, 2019 at 06:55:41AM +0100, Dean Rasheed wrote:
I'm not sure it's easy to justify ordering by Abs(freq-
On Sun, Jun 23, 2019 at 10:23:19PM +0200, Tomas Vondra wrote:
On Sun, Jun 23, 2019 at 08:48:26PM +0100, Dean Rasheed wrote:
On Sat, 22 Jun 2019 at 15:10, Tomas Vondra wrote:
One annoying thing I noticed is that the base_frequency tends to end up
being 0, most likely due to getting too small. I
On Sun, Jun 23, 2019 at 08:48:26PM +0100, Dean Rasheed wrote:
On Sat, 22 Jun 2019 at 15:10, Tomas Vondra wrote:
One annoying thing I noticed is that the base_frequency tends to end up
being 0, most likely due to getting too small. It's a bit strange, though,
because with statistic target set to
On Sat, 22 Jun 2019 at 15:10, Tomas Vondra wrote:
> One annoying thing I noticed is that the base_frequency tends to end up
> being 0, most likely due to getting too small. It's a bit strange, though,
> because with statistic target set to 10k the smallest frequency for a
> single column is 1/3e6,
On Fri, Jun 21, 2019 at 08:50:33AM +0100, Dean Rasheed wrote:
On Thu, 20 Jun 2019 at 23:35, Tomas Vondra wrote:
On Thu, Jun 20, 2019 at 06:55:41AM +0100, Dean Rasheed wrote:
>I'm not sure it's easy to justify ordering by Abs(freq-base_freq)/freq
>though, because that would seem likely to put
On Thu, 20 Jun 2019 at 23:35, Tomas Vondra wrote:
>
> On Thu, Jun 20, 2019 at 06:55:41AM +0100, Dean Rasheed wrote:
>
> >I'm not sure it's easy to justify ordering by Abs(freq-base_freq)/freq
> >though, because that would seem likely to put too much weight on the
> >least commonly occurring values
On Thu, Jun 20, 2019 at 06:55:41AM +0100, Dean Rasheed wrote:
On Tue, 18 Jun 2019 at 21:59, Tomas Vondra wrote:
The current implementation of multi-column MCV lists (added in this
cycle) uses a fairly simple algorithm to pick combinations to include in
the MCV list. We just compute a minimum n
On Tue, 18 Jun 2019 at 21:59, Tomas Vondra wrote:
>
> The current implementation of multi-column MCV lists (added in this
> cycle) uses a fairly simple algorithm to pick combinations to include in
> the MCV list. We just compute a minimum number of occurences, and then
> include all entries sample
Hi,
The current implementation of multi-column MCV lists (added in this
cycle) uses a fairly simple algorithm to pick combinations to include in
the MCV list. We just compute a minimum number of occurences, and then
include all entries sampled more often. See get_mincount_for_mcv_list().
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