Re: [SQL] death of array? - Mailing list pgsql-sql

On Fri, Apr 7, 2017 at 8:57 AM, Rob Sargent <robjsargent@gmail.com> wrote:

Understood but  true if any match is found, I need every array member to match as I want them all to be of a specific people as input into the query (so field = all(array_col))  and "field" here would be people_member.person_id and using that yields zero results in full query (very quickly though).

​I didn't actually attempt to comprehend your original email.  If you want to supply a self-contained, functioning, query and expected output (ideally something simpler but that covers your main question) I'd be inclined to dig further.  Even a broken one with what you think should work would be

person = ALL(persons) doesn't really seem like it will typically work.

Here are the various array operators supplied by PostgreSQL.  You might find one of them helpful.  In particular "contains".

https://www.postgresql.org/docs/9.6/static/functions-array.html

David J.

​

Well you prodding got me a seriously reduced execution time.  Here's the actual query. The tables are all in the 'seg' schema and not substantively different than described in first post.

create temp table opt10aut
as
with optset as (
    select s.id
           , s.markerset_id
           , s.startbase
           , s.endbase
           , ((s.events_equal + s.events_greater)/(1.0 * (s.events_less + s.events_equal + s.events_greater))) as pval
    from seg.segment s
         join seg.probandset i on s.probandset_id = i.id
     join (select people_id, array_agg(person_id) as persons from seg.people_member group by people_id) as pa on i.probands <@ pa.persons
     join seg.people o on pa.people_id = o.id
   where
         s.markerset_id = '61801888-9a81-4187-922c-4d42c0471bea'
         and o.name = '709'
)
select m.name
       , min(pval)
from optset op
     join seg.markerset_member mm on op.markerset_id = mm.markerset_id
     join seg.marker m on mm.member_id = m.id
where
     m.basepos between op.startbase and op.endbase
group by m.name

It is true that this particular people has only 60 members.  Our upper end would be ~1000.

rjs