Re: PATCH: index-only scans with partial indexes

On Wed, Mar 30, 2016 at 8:40 AM, Tomas Vondra
<tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:

>> ===
>> @@ -2697,6 +2697,7 @@ check_partial_indexes(PlannerInfo *root, RelOptInfo
>> *rel)
>> continue; /* don't repeat
>> work if already proven OK */
>>
>> have_partial = true;
>> + break;
>> }
>> if (!have_partial)
>> return;
>> ===
>>
>> The initialization has been moved to set_rel_size so the break
>> can be restored.
>
> FWIW the break was restored in the v9 by me.

Yeah, I kept that in v10, so the three of us seem to be on the same
page there.

>> FWIW, as mentioned upthread, I added the following condition to
>> decline ripping index predicates from base restrictinfo without
>> understanding the reason to do so.
>
> Ummmm, I'm a bit confused. Which condition?

Yeah, any additional discussion about areas which anyone sees as
open or still needing attention might allow me to get enough
traction to wrap this; I'm having trouble seeing what the pending
issues are where both Tom and Kyotaro-san seemed to be unsatisfied.

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company