CreateQuery rename_table_polymorphic (children 3)
 Identifier rename_table_polymorphic
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration key (children 1)
    DataType Int32
   ColumnDeclaration value1 (children 1)
    DataType Int32
   ColumnDeclaration value2 (children 1)
    DataType Int32
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set