DBMS.md

System databases (contains in system/):

Access db:

• query log table

System db:

• all the registered databases list table
• (in future) indexation, etc, etc

Users db:

• users passwords and logins table (and UID ofc)
• (in future) users groups

Perf db:

• Perfomance data table (queries, query time, etc, etc)

Logging (in another format)

• Errors
• Important events (starting, new shard, saving, etc)