SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function arrayNormalizedGini (children 1)
     ExpressionList (children 2)
      Literal Array_[Float64_0.9, Float64_0.3, Float64_0.8, Float64_0.7]
      Identifier a2
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t
