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COF-C02 · Question #152

COF-C02 Question #152: Real Exam Question with Answer & Explanation

The correct answer is B: Stopping the virtual warehouse that the query is running against. The ResultSet cache is leveraged to quickly return results for repeated queries. Actions that prevent leveraging this cache include stopping the virtual warehouse that the query is running against (B) and executing the RESULTS_SCAN() table function (D). Stopping the warehouse cle

Performance Management

Question

What actions will prevent leveraging of the ResultSet cache? (Choose two.)

Options

  • ARemoving a column from the query SELECT list
  • BStopping the virtual warehouse that the query is running against
  • CClustering of the data used by the query
  • DExecuting the RESULTS_SCAN() table function
  • EChanging a column that is not in the cached query

Explanation

The ResultSet cache is leveraged to quickly return results for repeated queries. Actions that prevent leveraging this cache include stopping the virtual warehouse that the query is running against (B) and executing the RESULTS_SCAN() table function (D). Stopping the warehouse clears the local disk cache, including the ResultSet cache. The RESULTS_SCAN() function is used to retrieve the result of a previously executed query, which bypasses the need for the ResultSet cache.

Topics

#ResultSet Cache#Query Performance#Virtual Warehouse#Query History

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