Package "pgreplay"

replay PostgreSQL log files
Reads a PostgreSQL log file (*not* a WAL file), extracts the SQL
statements and executes them in the same order and with the original
timing against a PostgreSQL database.

If the execution of statements gets behind schedule, warning messages
are issued that indicate that the server cannot handle the load in a
timely fashion.

A final report gives you a useful statistical analysis of your workload
and its execution.

The idea is to replay a real-world database workload as exactly
as possible.

This is useful for performance tests, particularly in the following
situations:
- You want to compare the performance of your PostgreSQL application on
different hardware or different operating systems.
- You want to upgrade your database and want to make sure that the new
database version does not suffer from performance regressions that
affect you.