When running the statement in relations.sql, our Redshift cluster query planner will, seemingly at random, expect to use a nested loop join. This reflects in extended execution times, adding anywhere ...

During optimization, the cardinality estimation process is responsible for estimating the number of rows processed at each step in an execution plan. Cardinality estimation uses a combination of ...

Abstract: In the software industry, Structured Query Language (SQL) remains a highly sought-after skill required by most employers. SQL is widely adopted as the preferred declarative language to ...