If queries perform suboptimally, use Workload Analyzer to get tuning recommendations for them and hints about optimizing database objects. Workload Analyzer is a Vertica utility that analyzes system information in Vertica system tables.
Workload Analyzer identifies the root causes of poor query performance through intelligent monitoring of query execution, workload history, resources, and configurations. It then returns a set of tuning recommendations based on statistics, system and data collector events, and database/table/projection design. Use these recommendations to tune query performance, quickly and easily.
You can run Workload Analyzer in two ways:
See Workload Analyzer Recommendations for common issues that Workload Analyzer finds, and recommendations.