Rdatatable/datatable — pull request #694 by jangorecki (2014-06-12 23:22:29+00:00)
Title: joinbyv - batch join multiple tables

Hello,
Utility function to batch join multiple tables. Using one function call you can perform many deeply customized joins. I found it very useful in process of denormalization hierarchical data from DataWarehouse/DB organized in *star schema* or *snowflake schema* design patterns. Generally it can be useful any time when series of joins is required.
Any comments?
Jan