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Yoran Heling reported a case where a data type could be dropped while references to its OID remain behind in pg_amproc. This causes getObjectDescription to fail, which blocks dropping the operator family (since our DROP code likes to construct descriptions of everything it's dropping). The proper fix for this requires adding more pg_depend entries. But to allow DROP to go through with already-corrupt catalogs, tweak getObjectDescription to print "???" for the type instead of failing when it processes such an entry. I changed the logic for pg_amop similarly, for consistency, although it is not known that the problem can manifest in pg_amop. Per report from Yoran Heling. Back-patch to all supported branches (although the problem may be unreachable in v13). Discussion: https://postgr.es/m/Z1MVCOh1hprjK5Sf@gmai021 |
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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/.