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 dictGet (children 1)
       ExpressionList (children 3)
        Literal \'dictionary_all\'
        Literal \'name\'
        Identifier id
      Literal \'alpha\'
    ExpressionList (children 2)
     OrderByElement (children 1)
      Identifier id
     OrderByElement (children 1)
      Identifier payload
