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An Overview of Result Sets in the Node.js Driver
Result sets are great for huge queries or when you don’t know how many rows will be returned. And how often do you really know how many rows will be returned from a query, anyway? Probably not very often, which is why I highly recommend using result sets as the default means through which you execute queries with the Node.js driver.
The exception to this rule would be situations when you are after a specific number of rows, such as single row fetches and pagination queries, and the number of rows is relatively low. In these cases, the default query result method will perform faster.
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