Using sample data sets
There are enough sample data sets that are available for PostgreSQL, and most of the data sets are implemented by considering real-time business cases.
Note
Find the list of sample data sets that are available for postgres at this URL:Â https://wiki.postgresql.org/wiki/Sample_Databases.
Benchmarking tools such as pgBench
 and BenchmarkSQL will initiate a sample data set, on which they generate a real-time database load and do the benchmarking. In this chapter, to demonstrate a few aspects of the optimizer, let's choose the BenchmarkSQL's catalog tables, which will generate enough data load for this chapter's demonstrations.
Getting ready
BenchmarkSQL is an open source implementation of the popular TPC/C OLTP database benchmark, which supports Firebird, Oracle, and PostgreSQL and captures detailed benchmark results in CSV files, which can later be turned into an HTML report. BenchmarkSQL also captures the OS metrics, such as CPU and memory usages...