From: olivier <olivier@3bf09e05-f825-4182-b9bc-eedd7160adf0>
Date: Mon, 15 Jun 2009 14:20:33 +0000 (+0000)
Subject: migration: enforce uniqueness on instruments relations tables
X-Git-Url: https://git.parisson.com/?a=commitdiff_plain;h=05366f5a63febdc482339b71d34fe67b2bd49b70;p=telemeta-data.git

migration: enforce uniqueness on instruments relations tables

git-svn-id: http://svn.parisson.org/svn/crem@108 3bf09e05-f825-4182-b9bc-eedd7160adf0
---

diff --git a/trunk/docref/crem.sql b/trunk/docref/crem.sql
index 07dd84e..9849023 100644
--- a/trunk/docref/crem.sql
+++ b/trunk/docref/crem.sql
@@ -312,6 +312,7 @@ CREATE TABLE instrument_relations (
     instrument_id           INTEGER NOT NULL, 
     parent_instrument_id    INTEGER NOT NULL,
 
+    PRIMARY KEY(instrument_id, parent_instrument_id),
     FOREIGN KEY(instrument_id)          REFERENCES instruments (id)
         ON DELETE CASCADE,
     FOREIGN KEY(parent_instrument_id)   REFERENCES instruments (id)
@@ -327,6 +328,7 @@ CREATE TABLE instrument_alias_relations (
     alias_id                INTEGER NOT NULL, 
     instrument_id           INTEGER NOT NULL,
 
+    PRIMARY KEY(alias_id, instrument_id),
     FOREIGN KEY(alias_id)       REFERENCES instrument_aliases (id)
         ON DELETE CASCADE,
     FOREIGN KEY(instrument_id)  REFERENCES instruments (id)