SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function arrayLevenshteinDistance (children 1)
     ExpressionList (children 2)
      Identifier lhs
      Identifier rhs
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier simple_levenshtein
