Graph Automation slowed by in-efficient index selection

# Describe the bug

On very large systems, graph automation can be slowed due to MariaDB/MySQL selecting a poor index to control queries for graphs.  In these cases, it's real important to force MariaDB/MySQL to use an optimal index for the queries.  The MariaDB/MySQL Query Optimized does not always get it right.

## Expected behavior

Faster running automation.
