Explain EXPLAIN SYNTAX (children 2)
 Set
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 4)
    ExpressionList (children 2)
     Identifier id
     Identifier payload
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier tab
    Function equals (children 1)
     ExpressionList (children 2)
      Function dictGetInt32 (children 1)
       ExpressionList (children 3)
        Literal \'dictionary_all\'
        Literal \'i32\'
        Identifier id
      Literal Int64_-32
    ExpressionList (children 2)
     OrderByElement (children 1)
      Identifier id
     OrderByElement (children 1)
      Identifier payload
