Re: UNIQUE on everything except primary key
| От | Andreas Gaab |
|---|---|
| Тема | Re: UNIQUE on everything except primary key |
| Дата | |
| Msg-id | 48DA836F3865C54B8FBF424A3B775AF6671A683922@Exchange-Server обсуждение исходный текст |
| Ответ на | UNIQUE on everything except primary key (gvim <gvimrc@gmail.com>) |
| Список | pgsql-sql |
Did you check check constraints? http://www.postgresql.org/docs/8.4/static/ddl-constraints.html Best Andreas -----Ursprüngliche Nachricht----- Von: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org] Im Auftrag von gvim Gesendet: Donnerstag, 3. Februar 2011 16:44 An: pgsql sql Betreff: [SQL] UNIQUE on everything except primary key I have a table with 11 columns and want to eliminate duplication on INSERTs. What's the best method? The obvious solutionwould be to create a UNIQUE index on everything except the primary key - 'id' - but that's a 10-column index anddoesn't sound very efficient. Am I missing something more obvious? gvim -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
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