The statement if an element is to be added to the resulting set, a filter predicate must return true; otherwise, it must return false is True .
What is filter predicate?
- It is the capacity to forego reading pointless material from a data set at the storage level. Simple explanation: It does not need to load the entire data set into RAM in order to filter rows or columns because it filters the WHERE of your SELECT at the storage level.
- A predicate is a function that, depending on a condition, returns a true or false value. Consider an array of integers and a predicate that returns true if number > 0 and false otherwise. This is how it's used as a "filter criteria."
- Filter refers to receiving more data than necessary and filtering it once it has been obtained. All rows will be subject to the filter, and only those that pass it will be forwarded on.
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