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related functions. Per today's discussion, we will henceforth assume that datatype I/O functions are either stable or immutable, never volatile. (This implies in particular that domain CHECK constraint expressions shouldn't be volatile, since domain_in executes them.) In turn, functions that execute the I/O functions of arbitrary datatypes should always be labeled stable. This affects the labeling of array_to_string, which was unsafely marked immutable, and record_in, record_out, record_recv, record_send, domain_in, domain_recv, which were over-conservatively marked volatile. The array I/O functions were already marked stable, which is correct per this policy but would have been wrong if we maintained domain_in as volatile. Back-patch to 9.0, along with an earlier fix to correctly mark cash_in and cash_out as stable not immutable (since they depend on lc_monetary). No catversion bump --- the implications of this are not currently severe enough to justify a forced initdb.
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/.