Allow Project Runtime to Pass Through an Empty Frame

Before this change, project runtime expects at least a single record.
Now it can also process an empty frame.

Change-Id: I87dc6eb83a748f7f91610e7d11ebaec9be914e29
Reviewed-on: https://asterix-gerrit.ics.uci.edu/634
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: abdullah alamoudi <bamousaa@gmail.com>
1 file changed
tree: 9fccb720921a962c07ca9e3ed773a6dfc2acecd9
  1. .gitignore
  2. DISCLAIMER
  3. LICENSE
  4. NOTICE
  5. algebricks/
  6. hyracks/
  7. pom.xml
  8. src/