SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function arrayJoin (children 1)
     ExpressionList (children 1)
      Function distinctJSONPaths (children 1)
       ExpressionList (children 1)
        Identifier json
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_json_dynamic_aggregate_functions
   Function equals (children 1)
    ExpressionList (children 2)
     Function dynamicType (children 1)
      ExpressionList (children 1)
       Identifier json.a2
     Literal \'String\'
