Augur datamart tables are summaries of commit activity by year, month and week. All have the prefix dm_ and are in the augur_data schema.
There are scripts with the prefix experimental-networks and one called network.sql that are experimental and used to reshape Augur data into a network structure for analysis. As the names suggest, these are experimental, which means we are not supporting them (much) right now.
This script is an efficiency improvement over the datamart.py implementation. We recommend that if you run this script manually (i.e., not within the normal execution process of Augur), you first pause data collection. The datamart.sql file contains the older, less efficient dm_ table generation scripts.