Re: Yet another indexing issue.

Here is the explain output

Sort  (cost=293.24..293.24 rows=1 width=128)
  ->  Seq Scan on phonecalls  (cost=0.00..293.23 rows=1 width=128)

Here is the Table
CREATE TABLE "phonecalls" (
  "irecnum" int4 DEFAULT nextval('"phonecalls_irecnum_seq"'::text) NOT NULL,
  "scaller" varchar(80),
  "sphone" varchar(40),
  "sphone2" varchar(40),
  "squedby" varchar(40),
  "sfor" varchar(40),
  "dplaceddate" timestamp,
  "dtakendate" timestamp,
  "dresdate" timestamp,
  "ipri" int4,
  "istatus" int4,
  "iresolution" int4,
  "ireques" int4,
  "snotes" varchar(3999),
  "stakenby" varchar(40),
  CONSTRAINT "phonecalls_irecnum_key" UNIQUE ("irecnum")
);

Where would one find set enable_seqscan=off; in the docs?

-----Original Message-----
From: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org]On Behalf Of Stephan Szabo
Sent: Tuesday, March 19, 2002 3:51 PM
To: David Siebert
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Yet another indexing issue.


On Tue, 19 Mar 2002, David Siebert wrote:

>
> I am having issues with an Index.
> Here is the query
>
> SELECT * FROM phonecalls WHERE istatus = 0 AND (sfor = 'pat' OR
> sfor='TECHIES') ORDER BY ipri DESC, dplaceddate;
> I have tried '0' and jut plain 0 as well as type casting it with ::int4 .
>
> Here is the index I think it should use.
>
> CREATE INDEX phonecallspoll ON phonecalls USING btree (sfor varchar_ops,
> istatus int4_ops);
> But it is still doing a scan?
>
> Any suggestions?
> yes I have used Vacumme with the anylise option.

What is the schema (probably not meaningful but always helps), what does
explain show for the query (specifically for the row counds), does using
set enable_seqscan=off change the explain output?



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