From: A. Kretschmer <andreas.kretschmer@schollglas.com>
To: pgsql-sql@postgresql.org
Subject: Re: Strange bug
Date: Tue, 29 Nov 2005 15:43:50 +0100
Message-ID: <20051129144350.GO31026@webserv.wug-glas.de> (raw)
In-Reply-To: <200511291531.30441.leif@solumslekt.org>
References: <200511291531.30441.leif@solumslekt.org>
am 29.11.2005, um 15:31:30 +0100 mailte Leif B. Kristensen folgendes:
> CREATE TABLE citations (
> citation_id INTEGER PRIMARY KEY,
> source_fk INTEGER REFERENCES sources (source_id)
> );
>
> CREATE TABLE relation_citations (
> relation_fk INTEGER REFERENCES relations (relation_id)
> ) INHERITS (citations);
You are using inheritation in PostgreSQL.
>
> ALTER TABLE relation_citations
> ADD CONSTRAINT source_relation_citation UNIQUE
> (source_fk, relation_fk);
> CREATE INDEX cit_relation_key ON relation_citations (relation_fk);
>
> And here is the accident:
>
> pgslekt=> insert into relation_citations values (64062,4578,20017);
> INSERT 1478990 1
> pgslekt=> insert into relation_citations values (64062,4578,20018);
> INSERT 1478991 1
Right, the uniq contraints are on (source_fk, relation_fk).
No problem.
>
> I got an error when I transferred the data to my Web database running
> MySQL:
MySQL is a other RDBMS. You can't expect that all features from
PostgreSQL are working with MySQL.
>
> ERROR 1062 at line 19839 in file: 'ss_relation_citations.sql': Duplicate
> entry '64062' for key 1
My guess: MySQL can't handle inheritance.
HTH, Andreas
--
Andreas Kretschmer (Kontakt: siehe Header)
Heynitz: 035242/47212, D1: 0160/7141639
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net
=== Schollglas Unternehmensgruppe ===
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: andreas.kretschmer@schollglas.com
Subject: Re: Strange bug
In-Reply-To: <20051129144350.GO31026@webserv.wug-glas.de>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox