Fix selecting empty result sets and avoid implicitly executing twice #20
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Trying to fetch a result set row for a query that returns an empty result set results in the query being executed again. We avoid this by first checking if there are any columns and avoid fetch result rows otherwise.
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Trying to fetch a result set row for a query that returns an empty
result set results in the query being executed again. We avoid this by
first checking if there are any columns and avoid fetch result rows
otherwise.