SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 4)
    Function CAST (alias json1) (children 1)
     ExpressionList (children 2)
      Literal \'{"a" : {"b" : 42}}\'
      Literal \'JSON\'
    Function CAST (alias json2) (children 1)
     ExpressionList (children 2)
      Literal \'{"a.b" : 42}\'
      Literal \'JSON\'
    Function JSONAllPaths (children 1)
     ExpressionList (children 1)
      Identifier json1
    Function JSONAllPaths (children 1)
     ExpressionList (children 1)
      Identifier json2
