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d0360632d3
CreateRole() was passing a Value node, not a RoleSpec node, for the newly-created role name when adding the role as a member of existing roles for the IN ROLE syntax. This mistake went unnoticed because the node in question is used only for error messages and is not accessed on non-error paths. In older pg versions (such as 9.5 where this was found), this results in an "unexpected node type" error in place of the real error. That node type check was removed at some point, after which the code would accidentally fail to fail on 64-bit platforms (on which accessing the Value node as if it were a RoleSpec would be mostly harmless) or give an "unexpected role type" error on 32-bit platforms. Fix the code to pass the correct node type, and add an lfirst_node assertion just in case. Per report on irc from user m1chelangelo. Backpatch all the way, because this error has been around for a long time.
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/.