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 and (children 1)
    ExpressionList (children 2)
     Function greaterOrEquals (children 1)
      ExpressionList (children 2)
       Identifier EventDate
       Function toDate (children 1)
        ExpressionList (children 1)
         Literal \'2015-01-01\'
     Function less (children 1)
      ExpressionList (children 2)
       Identifier EventDate
       Function toDate (children 1)
        ExpressionList (children 1)
         Literal \'2015-02-01\'