Index: trunk/dbconfig/p4.md
===================================================================
--- trunk/dbconfig/p4.md	(revision 11779)
+++ trunk/dbconfig/p4.md	(revision 11818)
@@ -1,3 +1,3 @@
-# $Id: p4.md,v 1.11 2007-02-13 22:33:30 jhoblitt Exp $
+# $Id: p4.md,v 1.12 2007-02-15 03:53:24 jhoblitt Exp $
 
 #
@@ -22,10 +22,11 @@
 
 # the list of imfiles in our skycell keyed against phase 3
+# only allow one p3_version of an exp_tag per p4Run
 p4InputExp METADATA
     p4_id       S32         0       # Primary Key
     exp_tag     STR         64      # Primary Key
-    p3_version  S32         0       # Primary Key
+    p3_version  S32         0       # Key
 # if magic is T then look for the exp_tag in the magic output tables
-    magiced     BOOL        f       # Primary Key
+    magiced     BOOL        f       # Key
 END
 
@@ -45,6 +46,6 @@
     skycell_id  STR         64      # Primary Key
     tess_id     STR         64      # Primary Key
-    exp_tag     STR         64      # Primary Key
-    p3_version  S32         0       # Primary Key
+    exp_tag     STR         64      # Key
+    p3_version  S32         0       # Key
     uri         STR         255
     bg          F64         0.0