Date: Tue, 15 Apr 2003 11:33:29 +0100
From: David Goodwin <dof@codepoets.co.uk>
To: pgsql-sql@postgresql.org
Subject: ordering problems ...
Message-ID: <20030415103328.GA3076@codepoets.co.uk>
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Hello everyone,

I have two tables :

question_response and question_response_answer. 

There is a one to many relationship between the question_response and a
question_response_answer (schema below at the bottom).

When I execute :


select answer from question_response_answer qra, question_response qr 
WHERE qr.response_id = qra.response_id AND qr.personal_id =
'XXYYTEST2' AND qr.module_code = 'TEST990' AND qr.assessment_id = 109
AND qr.question_id = 125 ;

I get :

 answer
---------
 Foo Bar
 Fred
 No
 Yes


When I execute :
                                                                         
select * from question_response_answer;

I get :

response_id |   answer
-------------+------------
         148 | Yes
         148 | No
         148 | Fred
         148 | Foo Bar

I'd like to know why the ordering has changed, and is there anything I can do make it the same as it is on the "select * from question_response_answer" "version" ?

Running Postgres 7.3.2 on Linux.

Schema :
    Column     |         Type         |                       Modifiers
---------------+----------------------+--------------------------------------------------------
 response_id   | integer              | not null default
nextval('question_reponse_seq'::text)
 question_id   | integer              |
 personal_id   | character varying(9) |
 assessment_id | integer              |
 module_code   | character varying(9) |
Indexes: question_response_pkey primary key btree (response_id),
         question_response_question_id_key unique btree (question_id,
personal_id, assessment_id)

(there are foreign keys, but I've left them off)

tweektest=> \d question_response_answer;
Table "public.question_response_answer"
   Column    |  Type   | Modifiers
-------------+---------+-----------
 response_id | integer | not null
 answer      | text    | not null
Indexes: question_response_answer_pkey primary key btree (response_id,
answer)
Foreign Key constraints: $1 FOREIGN KEY (response_id) REFERENCES
question_response(response_id) ON UPDATE NO ACTION ON DELETE CASCADE


Thanks in advance,
David.

-- 
David Goodwin 

[ dof at codepoets dot co dot uk   ]
[ http://www.codepoets.co.uk       ]