[open-ils-commits] r10760 - trunk/Open-ILS/src/extras/import

[svn at svn.open-ils.org]

Author: miker
Date: 2008-10-06 07:27:52 -0400 (Mon, 06 Oct 2008)
New Revision: 10760

Modified:
   trunk/Open-ILS/src/extras/import/quick_metarecord_map.sql
Log:
safer MR mapping

Modified: trunk/Open-ILS/src/extras/import/quick_metarecord_map.sql
===================================================================
--- trunk/Open-ILS/src/extras/import/quick_metarecord_map.sql	2008-10-06 03:40:01 UTC (rev 10759)
+++ trunk/Open-ILS/src/extras/import/quick_metarecord_map.sql	2008-10-06 11:27:52 UTC (rev 10760)
@@ -1,31 +1,23 @@
 BEGIN;
 
-ALTER TABLE metabib.metarecord_source_map DROP CONSTRAINT metabib_metarecord_source_map_metarecord_fkey;
-
-TRUNCATE metabib.metarecord;
-TRUNCATE metabib.metarecord_source_map;
-
 INSERT INTO metabib.metarecord (fingerprint,master_record)
 	SELECT	fingerprint,id
 	  FROM	(SELECT	DISTINCT ON (fingerprint)
 	  		fingerprint, id, quality
 		  FROM	biblio.record_entry
 		  ORDER BY fingerprint, quality desc) AS x
-	  WHERE	fingerprint IS NOT NULL;
+	  WHERE	fingerprint IS NOT NULL
+            AND fingerprint NOT IN ( SELECT fingerprint FROM metabib.metarecord);
 
 INSERT INTO metabib.metarecord_source_map (metarecord,source)
 	SELECT	m.id, b.id
 	  FROM	biblio.record_entry b
-	  	JOIN metabib.metarecord m ON (m.fingerprint = b.fingerprint);
+	  	JOIN metabib.metarecord m ON (m.fingerprint = b.fingerprint)
+	  	LEFT JOIN metabib.metarecord_source_map s ON (b.id = s.source)
+      WHERE s.id IS NULL;
 
 COMMIT;
 
-BEGIN;
-
-ALTER TABLE metabib.metarecord_source_map ADD CONSTRAINT metabib_metarecord_source_map_metarecord_fkey FOREIGN KEY (metarecord) REFERENCES metabib.metarecord (id) DEFERRABLE INITIALLY DEFERRED;
-
-COMMIT;
-
 VACUUM FULL ANALYZE VERBOSE metabib.metarecord;
 VACUUM FULL ANALYZE VERBOSE metabib.metarecord_source_map;