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Commitf6f0542266changed getNotify(), getParameterStatus(), and related libpq message-processing paths to abandon the connection on out-of-memory errors. However, getCopyDataMessage() and pqFunctionCall3() did not handle this new fatal-error state. Both can process asynchronous NotificationResponse and ParameterStatus messages while waiting for other responses. If one of those messages triggered a fatal error, these loops continued processing instead of reporting it immediately. Fix this by checking for a saved fatal error after processing an asynchronous message. If the connection has been abandoned, return the appropriate error immediately instead of continuing to parse input. Backpatch to v18, where commitf6f0542266introduced this issue. Author: Anthonin Bonnefoy <anthonin.bonnefoy@datadoghq.com> Reviewed-by: Ewan Young <kdbase.hack@gmail.com> Reviewed-by: Fujii Masao <masao.fujii@gmail.com> Discussion: https://postgr.es/m/CAO6_XqpGfm+XHE1OzS=_+jroeDOxhhGa11P3cbm9q2gT05yorA@mail.gmail.com Backpatch-through: 18
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/.