ConstThe query summary describes a class of database queries and is useful as a grouping key, especially when analyzing telemetry for database calls involving complex queries.
Summary may be available to the instrumentation through instrumentation hooks or other means. If it is not available, instrumentations that support query parsing SHOULD generate a summary following Generating query summary section.
For batch operations, if the individual operations are known to have the same query summary
then that query summary SHOULD be used prepended by BATCH ,
otherwise db.query.summary SHOULD be BATCH or some other database
system specific term if more applicable.
Low cardinality summary of a database query.