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When providing tab completion for ALTER DEFAULT PRIVILEGES, we are including the list of roles as possible options for completion after the GRANT or REVOKE. Further, we accept FOR ROLE/IN SCHEMA at the same time and in either order, but the tab completion was only working for one or the other. Lastly, we weren't using the actual list of allowed kinds of objects for default privileges for completion after the 'GRANT X ON' but instead were completeing to what 'GRANT X ON' supports, which isn't the ssame at all. Address these issues by improving the forward tab-completion for ALTER DEFAULT PRIVILEGES and then constrain and correct how the tail completion is done when it is for ALTER DEFAULT PRIVILEGES. Back-patch the forward/tail tab-completion to 9.6, where we made it easy to handle such cases. For 9.5 and earlier, correct the initial tab-completion to at least be correct as far as it goes and then add a check for GRANT/REVOKE to only tab-complete when the GRANT/REVOKE is the start of the command, so we don't try to do tab-completion after we get to the GRANT/REVOKE part of the ALTER DEFAULT PRIVILEGES command, which is better than providing incorrect completions. Initial patch for master and 9.6 by Gilles Darold, though I cleaned it up and added a few comments. All bugs in the 9.5 and earlier patch are mine. Discussion: https://www.postgresql.org/message-id/1614593c-e356-5b27-6dba-66320a9bc68b@dalibo.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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.