698fa924b1
We've long had a practice of making views temporary by default if they reference any temporary tables. However the implementation was pretty incomplete, in that it only searched for RangeTblEntry references to temp relations. Uses of temporary types, regclass constants, etc were not detected even though the dependency mechanism considers them grounds for dropping the view. Thus a view not believed to be temp could silently go away at session exit anyhow. To improve matters, replace the ad-hoc isQueryUsingTempRelation() logic with use of the dependency-based infrastructure introduced by commit572c40ba9. This is complete by definition, and it's less code overall. While we're at it, we can also extend the warning NOTICE (or ERROR in the case of a materialized view) to mention one of the temp objects motivating the classification of the view as temp, as was done for functions in572c40ba9. Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Jim Jones <jim.jones@uni-muenster.de> 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/.