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Commit c66a7d75e652 modified DROP DATABASE so that if interrupted, the database is known to be in an invalid state and can only be dropped. This is done by setting a flag using an in-place update, so that it's not lost in case of rollback. For databases with many ACLs, this may however fail like this: ERROR: wrong tuple length This happens because with many ACLs, the pg_database.datacl attribute gets TOASTed. The dropdb() code reads the tuple from the syscache, which means it's detoasted. But the in-place update expects the tuple length to match the on-disk tuple. Fixed by reading the tuple from the catalog directly, not from syscache. Report and fix by Ayush Tiwari. Backpatch to 12. The DROP DATABASE fix was backpatched to 11, but 11 is EOL at this point. Reported-by: Ayush Tiwari Author: Ayush Tiwari Reviewed-by: Tomas Vondra Backpatch-through: 12 Discussion: https://postgr.es/m/CAJTYsWWNkCt+-UnMhg=BiCD3Mh8c2JdHLofPxsW3m2dkDFw8RA@mail.gmail.com
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/.