This example illustrates the effect of column group statistics on a qualifying OR predicate. Consider the following query on the EMPLOYEE table.
这个例子解释说明了列组统计信息对一个合格的OR谓词的影响。
This example illustrates the effect of column group statistics on a qualifying OR predicate. Consider the following query on the EMPLOYEE table.
这个例子解释说明了列组统计信息对一个合格的OR谓词的影响。
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