The blog post is a continuation of a series focusing on migrating data from buckets to scopes and collections in Couchbase 7.0 using eventing, highlighting a high-performance approach that facilitates the reorganization of large datasets. The method, which does not require N1QL queries or indexing, allows for the migration of over a million documents per second by leveraging the Data Service and Eventing Service. For those dealing with numerous data types, the author introduces a Perl script, CustomConvertBucketToCollections.pl, which automates the migration process, creating necessary eventing functions and keyspaces to simplify the transition. An example is provided to demonstrate the migration of 250 million records with 80 different types on an AWS cluster, showcasing the script's efficiency and integration with Couchbase's Eventing Page for deployment. The post invites readers to explore the accompanying GitHub repository and consider enhancing the script for more customizable configurations.