Various tools for managing, maintaining, and improving the performance of MySQL databases, originally written by Google.

Libraries:
  * pylib/db.py: Easily execute queries in parallel on a sharded database
    * Depends on MySQLdb. Most tools here depend on it.
  * permissions_lib/: Manage MySQL permissions in a Python-based format
    * Depends on tlslite.
  * parser_lib/: Parse SQL and apply rules based on the parsed output
    * Depends on pyparsing.

Binaries:
  * sql.py: Interactive shell for pylib/db.py
  * permissions.py: Tool for pushing permissions to servers using permissions_lib/
  * validate.py: Tool for validating SQL using parser_lib/