Explain EXPLAIN SYNTAX (children 2)
 Set
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 5)
    ExpressionList (children 2)
     Identifier color_id
     Identifier payload
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier t
    ExpressionList (children 2)
     OrderByElement (children 1)
      Identifier color_id
     OrderByElement (children 1)
      Identifier payload
    Literal UInt64_1
    ExpressionList (children 1)
     Function equals (children 1)
      ExpressionList (children 2)
       Function dictGetString (children 1)
        ExpressionList (children 3)
         Literal \'colors\'
         Literal \'name\'
         Identifier color_id
       Literal \'red\'
