PostgreSQL is emerging as the standard destination for database migrations from proprietary databases. As a consequence, there is an increase in demand for database side code migration and associated performance troubleshooting. One might be able to trace the latency to a plsql function, but explaining what happens within a function could be a difficult question. [&]

https://www.percona.com/blog/2019/02/13/plprofiler-getting-a-handy-tool-for-profiling-your-pl-pgsql-code/