A logical grouping of Performance Insights metrics for a related subject
area. For example, the db.sql dimension group consists of the
following dimensions: db.sql.id, db.sql.db_id,
db.sql.statement, and db.sql.tokenized_id.
A single query to be processed. You must provide the metric to query. If no
other parameters are specified, Performance Insights returns all of the data
points for that metric. You can optionally request that the data points be
aggregated by dimension group ( GroupBy), and return only those
data points that match your criteria (Filter).
Amazon RDS Performance Insights enables you to monitor and explore different
dimensions of database load based on data captured from a running DB
instance. The guide provides detailed information about Performance Insights
data types, parameters and errors.