merge_csvs
Merge multiple dbworkload statistic CSV files
There are situations where you need to run dbworkload from multiple servers, for example,
to simulate a distributed app targeting different nodes in your database technology.
You can use the --save|-s flag in your dbworkload run command to save metrics to a CSV files,
but eventually you want a unified view of your test.
This function allows you to merge multiple such statistics CSV files into a single CSV file.
Example
merge accepts a directory as input and will output a new statistic CSV file.
dbworkload util merge_csvs -i stats/