add index to rate_prefix.npa for a performance improvement on CDR billing, RT#6386

diff --git a/FS/FS/Schema.pm b/FS/FS/Schema.pm
index 06baab6..c08a300 100644 (file)
--- a/FS/FS/Schema.pm
+++ b/FS/FS/Schema.pm
@@ -1969,7 +1969,7 @@ sub tables_hashref {
       ],
       'primary_key' => 'prefixnum',
       'unique'      => [],
-      'index'       => [ [ 'countrycode' ], [ 'regionnum' ] ],
+      'index'       => [ [ 'countrycode' ], [ 'npa' ], [ 'regionnum' ] ],
     },
 
     'usage_class' => {