I have a MySQL database on Amazon RDS, few of the tables are growing fast so we are thinking to have a lighter/smaller database (or may be just specific tables) replica so that we can fetch current dashboards or reports from there.
And use the original larger database for on-demand heavy reporting.
I have tried AWS read-replica but that seems to copy entire data. But I only want data of say last 3 months only.
Please suggest how can we have an updated lighter replica.
P.S. I would also like to know if there is some other way to do that e-g table partition or something. I would appreciate some details.
Thanks