NewRelic importing logs from S3 bucket/folder_name path

[ceballosi]

We are creating data partitions from an S3 bucket which contains logfiles for several components in a stack.
We’d like to write query like this → entityName = ‘S3BucketName/folder_name’ so that we can segregate the data at the time of creation of a data partition without having to apply filters afterwards.
Or at least, create an attribute (folder_name) for the path, so that the filtering is more efficient than searching through text.