If the remote view contains a complex query, using table-level statistics such as the cardinality for the nickname over the view can be misleading.
如果远程视图包含一个复杂的查询，那么使用表级统计信息(例如视图昵称的基数)可能使人产生误解。
2
Other status data such as transaction rates are segmented by application domain and are accumulated only if the statistics setting configuration is enabled, as shown in Figure 7 below.
This example shows that if RUNSTATS is run while there is WRITE activity happening on the table, the statistics can be inconsistent as in this example.