Explain EXPLAIN SYNTAX (children 2)
 Set
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 3)
     Identifier t1.color_id
     Identifier t1.payload
     Identifier t2.payload (alias payload2)
    TablesInSelectQuery (children 2)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier t (alias t1)
     TablesInSelectQueryElement (children 2)
      TableExpression (children 1)
       TableIdentifier t (alias t2)
      TableJoin (children 1)
       Function and (children 1)
        ExpressionList (children 2)
         Function equals (children 1)
          ExpressionList (children 2)
           Identifier t1.color_id
           Identifier t2.color_id
         Function equals (children 1)
          ExpressionList (children 2)
           Function dictGetString (children 1)
            ExpressionList (children 3)
             Literal \'colors\'
             Literal \'name\'
             Identifier t1.color_id
           Literal \'red\'
    ExpressionList (children 3)
     OrderByElement (children 1)
      Identifier t1.color_id
     OrderByElement (children 1)
      Identifier t1.payload
     OrderByElement (children 1)
      Identifier payload2
