From: | "Philippe Lang" <philippe(dot)lang(at)attiksystem(dot)ch> |
---|---|
To: | <pgsql-sql(at)postgresql(dot)org> |
Subject: | pgxml & xpath_table |
Date: | 2006-06-08 16:00:42 |
Message-ID: | 6C0CF58A187DA5479245E0830AF84F421D0DB6@poweredge.attiksystem.ch |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
Hi,
I'm playing with the contrib/pgxml library under PG 8.1.4, and I'm not sure if what I found with pgxml is a feature of a bug:
I've got the following table:
--------------------
CREATE TABLE test
(
id int4 NOT NULL,
xml varchar(200),
CONSTRAINT pk PRIMARY KEY (id)
)
WITHOUT OIDS;
INSERT INTO test VALUES (1, '<doc num="C1"><line num="L1"><a>1</a><b>2</b><c>3</c></line><line num="L2"><a>11</a><b>22</b><c>33</c></line></doc>');
INSERT INTO test VALUES (2, '<doc num="C2"><line num="L1"><a>111</a><b>222</b><c>333</c></line><line num="L2"><a>111</a><b>222</b><c>333</c></line></doc>');
--------------------
If I launch this query:
--------------------
select * from
xpath_table('id','xml','test', '/doc/@num|/doc/line/@num|/doc/line/a|/doc/line/b|/doc/line/c','1=1') AS t(id int4, doc_num varchar(10), line_num varchar(10), val1 int4, val2 int4, val3 int4)
where id = 1
order by doc_num, line_num
--------------------
I get:
--------------------
id doc_num line_num val1 val2 val3
1 C1 L1 1 2 3
1 L2 11 22 33
--------------------
I was expecting doc_num would receive twice the C1 value, just like with a normal sql join.
Regards,
----------------------------------
Philippe Lang, Ing. Dipl. EPFL
Attik System
rte de la Fonderie 2
1700 Fribourg
Switzerland
http://www.attiksystem.ch
Tel: +41 (26) 422 13 75
Fax: +41 (26) 422 13 76
From | Date | Subject | |
---|---|---|---|
Next Message | Dias Costa | 2006-06-08 16:32:45 | Re: Query to return modified results at runtime? |
Previous Message | Oisin Glynn | 2006-06-08 15:56:40 | Re: Concat two fields into one at runtime |