Re: BUG #13979: Strange pg_stat_statements results with PREPARE/EXECUTE

2016-02-23 23:36 GMT+09:00 David G. Johnston <david(dot)g(dot)johnston(at)gmail(dot)com>:
> You need to tell people what exactly you think is strange/what you would
> expect to see.
Yeah.

So I expected following result after performing second time "SELECT *
FROM tt WHERE c1 = $1" in a previous e-mail.

=# SELECT queryid, calls, query FROM pg_stat_statements WHERE query LIKE
'%tt%';
queryid | calls | query
-----------+-------+----------------------------------------------------
575935600 | 1| PREPARE p1(int) AS SELECT * FROM tt WHERE c1 = $1;
other-queryid | 10 | SELECT * FROM tt WHERE c1 = $1;
(2 row)

But actually SELECT was counted as PREPARE in pg_stat_statements.
That's what I thought strange.

It seems to me that "<query>" and "PREPARE <query>" always have same queryid.
Therefore should I consider these queries as the same one ?

--
Tatsuhito Kasahara
kasahara.tatsuhito _at_ gmail.com