SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function trimLeft (children 1)
     ExpressionList (children 1)
      Literal \'   leading   \'
    Function trimLeft (children 1)
     ExpressionList (children 1)
      Literal \'   leading   \'
