Improve of this new index is significant!
It should also improve your creation of the current charts.
But don’t use too much indices, cause they will lower your insert-perfomance.
… but at the moment (you have a maximum of 160 inserts per minute) this will not have influence. 🙂
Your SQL query has been executed successfully (Query took 196.2649 sec)
CREATE INDEX idx_db_devid ON uradmonitor(
db_devid
)
I was just creating 7 charts in parallel for some experiment with various tubes. It was hard for the server, but after adding this additional index all 7 were generated instantly!