CreateQuery 01681_database_for_flat_dictionary simple_key_hierarchy_table (children 4)
 Identifier 01681_database_for_flat_dictionary
 Identifier simple_key_hierarchy_table
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration parent_id (children 1)
    DataType UInt64
 Storage definition (children 1)
  Function TinyLog (children 1)
   ExpressionList