* [refactor](non-vec) delete non-vec data sink Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
This pr does three things: 1. Modified the framework of table-valued-function(tvf). 2. be support `fetch_table_schema` rpc. 3. Implemented `S3(path, AK, SK, format)` table-valued-function.