Predicate is another common form of query expression that evaluates to either true or false.
Predicate是计算结果为true或false的常见查询表达式形式。
One such example is when the pushed down query is a common sub-expression.
一个例子就是被下推的查询是一个公共子表达式。
One such example is when the pushed down query is a common sub-expression.
一个例子就是被下推的查询是一个公共子表达式。
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