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d4bf3c9c94
Now that cache invalidation callbacks get only a hash value, and not a tuple TID (per commits632ae6829fandb5282aa893), the only way they can restrict what they invalidate is to know what the hash values mean. setrefs.c was doing this via a hard-wired assumption but that seems pretty grotty, and it'll only get worse as more cases come up. So let's expose a calculation function that takes the same parameters as SearchSysCache. Per complaint from Marko Kreen.
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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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/.