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This reverts commit 95fb5b49024, for reasons similar to what led to 1aa8324b81fa. In this case, the callback was called once per row, which is less worse than the previous callback introduced for COPY TO called once per argument for each row, still the patch set discussed to plug in custom routines to the COPY paths would be able to know which subroutine to use depending on its CopyFromState, so this led to a suboptimal approach at the end. For now, this part is reverted to consider better which approach to use. Discussion: https://postgr.es/m/20240206014125.qofww7ew3dx3v3uk@awork3.anarazel.de
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. Copyright and license information can be found in the file COPYRIGHT. General documentation about this version of PostgreSQL can be found at: https://www.postgresql.org/docs/devel/ In particular, information about building PostgreSQL from the source code can be found at: https://www.postgresql.org/docs/devel/installation.html The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.