DescribeQuery (children 1)
 TableExpression (children 1)
  Subquery (children 1)
   SelectWithUnionQuery (children 1)
    ExpressionList (children 1)
     SelectQuery (children 2)
      ExpressionList (children 1)
       ColumnsListMatcher (children 2)
        ExpressionList (children 2)
         Identifier id
         Identifier value
        ColumnsTransformerList (children 1)
         ColumnsReplaceTransformer (children 2)
          ColumnsReplaceTransformer::Replacement (children 1)
           Literal UInt64_5
          ColumnsReplaceTransformer::Replacement (children 1)
           Literal UInt64_6
      TablesInSelectQuery (children 1)
       TablesInSelectQueryElement (children 1)
        TableExpression (children 1)
         TableIdentifier test_table