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This new libpq function allows the application to send an 'H' message, which instructs the server to flush its outgoing buffer. This hasn't been needed so far because the Sync message already requests a buffer; and I failed to realize that this was needed in pipeline mode because PQpipelineSync also causes the buffer to be flushed. However, sometimes it is useful to request a flush without establishing a synchronization point. Backpatch to 14, where pipeline mode was introduced in libpq. Reported-by: Boris Kolpackov <boris@codesynthesis.com> Author: Álvaro Herrera <alvherre@alvh.no-ip.org> Discussion: https://postgr.es/m/202106252350.t76x73nt643j@alvherre.pgsql
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. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.