Re: PGSQL 10.9 vs PGSQL 9.6 SQL query behaviour.

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От Ghiurea, Isabella
Тема Re: PGSQL 10.9 vs PGSQL 9.6 SQL query behaviour.
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Msg-id 1571760478930.76745@nrc-cnrc.gc.ca
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Ответ на Re: PGSQL 10.9 vs PGSQL 9.6 SQL query behaviour.  (Jeff Janes <jeff.janes@gmail.com>)
Ответы Re: PGSQL 10.9 vs PGSQL 9.6 SQL query behaviour.
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Hi  Jeff,

Thank you for suggestion, yes we tested without Pgsphere index ( dropped the index) in PGSQL 10.9 , run same SQL and got the expected result which is same as the one in PG 9.5 but different f when using the PG sphere in 10.9( which returned null rows), 

explain SELECT count(*), min(degrees(long(pos))), max(degrees(long(pos))), min(degrees(lat(pos))), max(degrees(lat(pos)))
 FROM XXX.DR1
 WHERE pos <@ spoly '{(189.1d,30.9d),(192.1d,30.9d),(192.1d,33.9d),(189.1d,33.9d)}';
                                                                                           QUERY PLAN                               
                                                             
------------------------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------
 Aggregate  (cost=13576821.96..13576821.97 rows=1 width=40)
   ->  Seq Scan on DR1  (cost=0.00..13563681.20 rows=404331 width=16)
         Filter: (pos <@ '{(3.30041761552128 , 0.539306738866248),(3.35277749308111 , 0.539306738866248),(3.35277749308111 , 0.59166
6616426078),(3.30041761552128 , 0.591666616426078)}'::spoly)

From: Jeff Janes <jeff.janes@gmail.com>
Sent: Monday, October 21, 2019 3:20 PM
To: Ghiurea, Isabella
Cc: pgsql-admin@postgresql.org
Subject: Re: PGSQL 10.9 vs PGSQL 9.6 SQL query behaviour.
 
On Mon, Oct 21, 2019 at 1:09 PM Ghiurea, Isabella <Isabella.Ghiurea@nrc-cnrc.gc.ca> wrote:

In PG 9,5.16 we are seeing the correct/expecting number of rows returned BUT in  in PG 10.9 we are seeing returns 0 rows.


If you disable the index (`set enable_bitmapscan=off` should do that) do you get the same answer on each server?

Cheer,

Jeff
 

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