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d758d9702e
match_clause_to_partition_key failed to consider COERCION_PATH_ARRAYCOERCE cases in scalar-op-array expressions, so it was possible to crash the server easily. To handle this case properly (ie. prune partitions) we would need to run a bit of executor code during planning. Maybe it can be improved, but for now let's just not crash. Add a test case that used to trigger the crash. Author: Michaël Paquier match_clause_to_partition_key failed to indicate that operators that don't have a commutator in a btree opclass are unsupported. It is possible for this to cause a crash later if such an operator is used in a scalar-op-array expression. Add a test case that used to the crash. Author: Amit Langote One caller of gen_partprune_steps_internal in match_clause_to_partition_key was too optimistic about the former never returning an empty step list. Rid it of its innocence. (Having fixed the bug above, I no longer know how to exploit this, so no test case for it, but it remained a bug.) Revise code flow a little bit, for succintness. Author: Álvaro Herrera Reported-by: Marina Polyakova Reviewed-by: Michaël Paquier Reviewed-by: Amit Langote Reviewed-by: Álvaro Herrera Discussion: https://postgr.es/m/ff8f9bfa485ff961d6bb43e54120485b@postgrespro.ru |
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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/.