src/product/README.trackDb 1.6

Index: src/product/README.trackDb
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/product/README.trackDb,v
retrieving revision 1.5
retrieving revision 1.6
diff -b -B -U 4 -r1.5 -r1.6
--- src/product/README.trackDb	19 Mar 2010 21:33:41 -0000	1.5
+++ src/product/README.trackDb	19 Mar 2010 22:33:38 -0000	1.6
@@ -89,8 +89,16 @@
 definitions, add to the specification in your cgi-bin/hg.conf file:
 
 db.trackDb=trackDb_localTracks,trackDb
 
+Beware of the specified order of the tables if there are tracks
+by the same name in each table.  Any definitions for tracks
+in trackDb_localTracks will override any definitions for the
+same named tracks in trackDb.  You could thus override the
+standard definitions for tracks from the trackDb table.
+Your usual case will be that your tracks are unique to your
+local installation.
+
 ========================================================================
 Extra Credit:
 
 See also: new assistant scripts as of March 2010 in the ./scripts/