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pg_recvlogical merely called PQfinish(), so the backend sent messages after the disconnect. When that caused EPIPE in internal_flush(), before a LogicalConfirmReceivedLocation(), the next pg_recvlogical would repeat already-acknowledged records. Whether or not the defect causes EPIPE, post-disconnect messages could contain an ErrorResponse that the user should see. One properly ends PGRES_COPY_OUT by repeating PQgetCopyData() until it returns a negative value. Augment one of the tests to cover the case of WAL past --endpos. Back-patch to v10, where commit 7c030783a5bd07cadffc2a1018bc33119a4c7505 first appeared. Before that commit, pg_recvlogical never reached PGRES_COPY_OUT. Reported by Thomas Munro. Discussion: https://postgr.es/m/CAEepm=1MzM2Z_xNe4foGwZ1a+MO_2S9oYDq3M5D11=JDU_+0Nw@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/.