Learn how to add full-text search to your MongoDB application using Atlas Search. Follow three steps: create an index, write a query, and test the results.

The desired effect is that after 1 second of execution, if it doesn't compute, then immediately break it. But this will not happen, and count() will complete the entire evaluation without being ...

With the arrival of the era of big data, the analysis and processing of massive data has become a very critical computing problem. This paper proposes a query optimization method based on SparkSQL and ...