1fd981f053
Previously, unnamed portals were kept until the next Bind message or the end of the transaction. This could cause temporary files to persist longer than expected and make logging not reflect the actual SQL responsible for the temporary file. This patch changes exec_execute_message() to drop unnamed portals immediately after execution to completion at the end of an Execute message, making their removal more aggressive. This forces temporary file cleanups to happen at the same time as the completion of the portal execution, with statement logging correctly reflecting to which statements these temporary files were attached to (see the diffs in the TAP test updated by this commit for an idea). The documentation is updated to describe the lifetime of unnamed portals, and test cases are updated to verify temporary file removal and proper statement logging after unnamed portal execution. This changes how unnamed portals are handled in the protocol, hence no backpatch is done. Author: Frédéric Yhuel <frederic.yhuel@dalibo.com> Co-Authored-by: Sami Imseih <samimseih@gmail.com> Co-Authored-by: Mircea Cadariu <cadariu.mircea@gmail.com> Discussion: https://postgr.es/m/CAA5RZ0tTrTUoEr3kDXCuKsvqYGq8OOHiBwoD-dyJocq95uEOTQ%40mail.gmail.com |
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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/.