Re: EXPLAIN ANALYZE not displaying recheck condition

On Thu, Nov 7, 2019 at 5:04 PM Ryan Lambert <ryan(at)rustprooflabs(dot)com> wrote:

> Hello,
>
> In Pg12 I noticed the output from EXPLAIN ANALYZE no longer displays the
> recheck condition when using GIST indexes, such as:
>
>
I can't reproduce this using postgis 2.5.2 in Pg12. What version of
postgis are you using, and how did you install it?

I use this sequence of commands, and I still get the recheck listed:

create schema osm;
create extension postgis;
create table osm.boundary_polygon (way geometry, name text);
create table osm.road_line (way geometry, highway text, ref text);
create index on osm.road_line using gist (way );
set enable_indexscan TO off;
set enable_seqscan TO off;
EXPLAIN (ANALYZE)
SELECT r.highway, r.ref, r.way
FROM osm.boundary_polygon b
INNER JOIN osm.road_line r ON ST_Contains(b.way, r.way)
WHERE b.name = 'Jefferson County' ;

Cheers,

Jeff

>