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Base de données relationnelle
c7cdcbd3e6
Three routines in pgstat_database.c incorrectly ignore the database OID provided by their caller, using MyDatabaseId instead: - pgstat_report_connect() - pgstat_report_disconnect() - pgstat_reset_database_timestamp() The first two functions, for connection and disconnection, each have a single caller that already passes MyDatabaseId. This was harmless, still incorrect. The timestamp reset function also has a single caller, but in this case the issue has a real impact: it fails to reset the timestamp for the shared-database entry (datid=0) when operating on shared objects. This situation can occur, for example, when resetting counters for shared relations via pg_stat_reset_single_table_counters(). There is currently one test in the tree that checks the reset of a shared relation, for pg_shdescription, we rely on it to check what is stored in pg_stat_database. As stats_reset may be NULL, two resets are done to provide a baseline for comparison. Author: Chao Li <li.evan.chao@gmail.com> Reviewed-by: Michael Paquier <michael@paquier.xyz> Reviewed-by: Dapeng Wang <wangdp20191008@gmail.com> Discussion: https://postgr.es/m/ABBD5026-506F-4006-A569-28F72C188693@gmail.com Backpatch-through: 15 |
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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. 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/.