Avoid Arrow IPC in the hanlding of data loading #315
Description
Previously, we've replace the approach of using Arrow IPC by registering Arrow data stream to transmit data to DuckDB in this PR #247. But this PR just applied to the procedure of persisting data replicated from OLTP databases.
We should move this modification further to cover the handling of the data persistence for data importing via Arrow which is triggered by the PostgreSQL command COPY to achieve faster processing and safer memory management.