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The following routines are added to libpq: PGresult *PQclosePrepared(PGconn *conn, const char *stmt); PGresult *PQclosePortal(PGconn *conn, const char *portal); int PQsendClosePrepared(PGconn *conn, const char *stmt); int PQsendClosePortal(PGconn *conn, const char *portal); The "send" routines are non-blocking versions of the two others. Close messages are part of the protocol but they did not have a libpq implementation. And, having these routines is for instance useful with connection poolers as these can detect more easily Close messages than DEALLOCATE queries. The implementation takes advantage of what the Describe routines rely on for portals and statements. Some regression tests are added in libpq_pipeline, for the four new routines, by closing portals and statements created already by the tests. Author: Jelte Fennema Reviewed-by: Jian He, Michael Paquier Discussion: https://postgr.es/m/CAGECzQTb4xFAopAVokudB+L62Kt44mNAL4Z9zZ7UTrs1TRFvWA@mail.gmail.com
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/.