add schema file for upgrades from 1.2.x to 1.3

docs/schema-upgrade-1.2-1.3.sql

@@ -0,0 +1,55 @@
+
+-- external yum repos
+create table external_repo (
+	id SERIAL NOT NULL PRIMARY KEY,
+	name TEXT UNIQUE NOT NULL
+);
+-- fake repo id for internal stuff (needed for unique index)
+INSERT INTO external_repo (id, name) VALUES (0, 'INTERNAL');
+
+create table external_repo_config (
+	external_repo_id INTEGER NOT NULL REFERENCES external_repo(id),
+	url TEXT NOT NULL,
+-- versioned - see earlier description of versioning
+	create_event INTEGER NOT NULL REFERENCES events(id) DEFAULT get_event(),
+	revoke_event INTEGER REFERENCES events(id),
+	active BOOLEAN DEFAULT 'true' CHECK (active),
+	CONSTRAINT active_revoke_sane CHECK (
+		(active IS NULL AND revoke_event IS NOT NULL )
+		OR (active IS NOT NULL AND revoke_event IS NULL )),
+	PRIMARY KEY (create_event, external_repo_id),
+	UNIQUE (external_repo_id, active)
+) WITHOUT OIDS;
+
+create table tag_external_repos (
+	tag_id INTEGER NOT NULL REFERENCES tag(id),
+	external_repo_id INTEGER NOT NULL REFERENCES external_repo(id),
+	priority INTEGER NOT NULL,
+-- versioned - see earlier description of versioning
+	create_event INTEGER NOT NULL REFERENCES events(id) DEFAULT get_event(),
+	revoke_event INTEGER REFERENCES events(id),
+	active BOOLEAN DEFAULT 'true' CHECK (active),
+	CONSTRAINT active_revoke_sane CHECK (
+		(active IS NULL AND revoke_event IS NOT NULL )
+		OR (active IS NOT NULL AND revoke_event IS NULL )),
+	PRIMARY KEY (create_event, tag_id, priority),
+	UNIQUE (tag_id, priority, active),
+	UNIQUE (tag_id, external_repo_id, active)
+);
+ 
+-- add the new column then set the existing packages to have the INTERNAL exteranl repo id
+-- then add the not null constraint 
+-- then drop rpminfo_unique_nvra CONSTRAINT and add the new version
+ALTER TABLE rpminfo ADD COLUMN external_repo_id INTEGER REFERENCES external_repo(id);
+UPDATE rpminfo SET external_repo_id = 0;
+ALTER TABLE rpminfo ALTER COLUMN external_repo_id SET NOT NULL;
+ALTER TABLE rpminfo DROP CONSTRAINT rpminfo_unique_nvra;
+ALTER TABLE rpminfo ADD CONSTRAINT rpminfo_unique_nvra UNIQUE (name,version,release,arch,external_repo_id);
+ 
+GRANT SELECT ON external_repo, external_repo_config, tag_external_repos TO PUBLIC;
+
+-- these tables are no longer included with newer koji 
+-- feel free to drop them
+-- DROP TABLE rpmfiles;                                                                     
+-- DROP TABLE rpmdeps;  
+-- DROP TABLE changelogs;