Milvus Metadata Management (2)

What this post added

This post details the fields within the `Tables` and `TableFiles` metadata tables in Milvus versions 0.5.0 and 0.6.0. It explains the significance of fields like `index_file_size`, `engine_type`, `nlist`, `metric_type`, `state`, `created_on`, `owner_table`, `partition_tag`, and `version`. It also describes fields in `TableFiles` such as `file_type`, `file_size`, and the number of vector rows, and clarifies the relationship between data files and their corresponding index files. The post also highlights the evolution of the data file cleanup mechanism in v0.6.0, moving from a fixed interval hard-delete to a reference counting approach for improved reliability and reduced disk usage.