faf17a6ad5e1cf7379a375b106f4900990d35c2d
kate
  Tue Apr 23 16:10:51 2019 -0700
Support for summary file to improve performance of collapseEmptySubtracks setting.  This implementation is first cut for the feature (w/o UI). refs #23365

diff --git src/hg/lib/bed3Sources.as src/hg/lib/bed3Sources.as
new file mode 100644
index 0000000..2605bc7
--- /dev/null
+++ src/hg/lib/bed3Sources.as
@@ -0,0 +1,9 @@
+table bed3Sources
+"BED3+2 with a count and list of sources for combined data"
+    (
+    string chrom;      "Reference sequence chromosome or scaffold"
+    uint   chromStart; "Start position in chromosome"
+    uint   chromEnd;   "End position in chromosome"
+    uint sourceCount;  "Number of sources"
+    uint[sourceCount] sourceIds; "Source ids"
+    )