public Set<String> getUserSuppliedFunctions() {
    return userSuppliedFunctions;
  }
Gets the user supplied functions.
Note 1: This list only accumulates UDFs explicitly mentioned in the query
Note 2: This list will not include UDFs defined with views/tables
@return List of String with names of UDFs.
ql/src/java/org/apache/hadoop/hive/ql/parse/BaseSemanticAnalyzer.java