572c40ba94
We don't have an official concept of temporary functions. (You can make one explicitly in pg_temp, but then you have to explicitly schema-qualify it on every call.) However, until now we were quite laissez-faire about whether a non-temporary function could depend on a temporary object, such as a temp table or view. If one does, it will silently go away at end of session, due to the automatic DROP ... CASCADE on the session's temporary objects. People have complained that that's surprising; however, we can't really forbid it because other people (including our own regression tests) rely on being able to do it. Let's compromise by emitting a NOTICE at CREATE FUNCTION time. This is somewhat comparable to our ancient practice of emitting a NOTICE when forcing a view to become temp because it depends on temp tables. Along the way, refactor recordDependencyOnExpr() so that the dependencies of an expression can be combined with other dependencies, instead of being emitted separately and perhaps duplicatively. We should probably make the implementation of temp-by-default views use the same infrastructure used here, but that's for another patch. It's unclear whether there are any other object classes that deserve similar treatment. Author: Jim Jones <jim.jones@uni-muenster.de> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/19cf6ae1-04cd-422c-a760-d7e75fe6cba9@uni-muenster.de
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.