SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier partitions
   Function or (children 1)
    ExpressionList (children 2)
     Function less (children 1)
      ExpressionList (children 2)
       Identifier EventDate
       Function toDate (children 1)
        ExpressionList (children 1)
         Literal \'2015-01-01\'
     Function greaterOrEquals (children 1)
      ExpressionList (children 2)
       Identifier EventDate
       Function toDate (children 1)
        ExpressionList (children 1)
         Literal \'2015-02-01\'