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d11eae09e4
The pump_nb() step might've already received the desired data, so we must check for that at the top of the loop not the bottom. Otherwise, the call to pump() will sit with nothing to do until the timeout elapses. pump_until then falls out with apparent success ... but the timeout has been used up, causing the next call of pump_until to report a timeout failure. I believe this explains the intermittent timeout failures we've seen in the buildfarm ever since this test went in. I was able to reproduce the problem on gaur semi-repeatably, and this appears to fix it. In passing, remove a duplicate assignment, fix one stdin-assignment to look like the rest, and document the test's dependency on test_decoding.
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/.