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In commit 0ca6bda8e7501947c05f30c127f6d12ff90b5a64, I rewrote the json.c code that decided how to convert SQL data types into JSON values, so that it no longer relied on typcategory which is a pretty untrustworthy guide to the output format of user-defined datatypes. However, I overlooked the fact that CREATE DOMAIN inherits typcategory from the base type, so that the old coding did have the desirable property of treating domains like their base types --- but only in some cases, because not all its decisions turned on typcategory. The version of the patch that went into 9.4 and up did a getBaseType() call to ensure that domains were always treated like their base types, but I omitted that from the older branches, because it would result in a behavioral change for domains over json or hstore; a change that's arguably a bug fix, but nonetheless a change that users had not asked for. What I overlooked was that this meant that domains over numerics and boolean were no longer treated like their base types, and that we *did* get a complaint about, ie bug #11103 from David Grelaud. So let's do the getBaseType() call in the older branches as well, to restore their previous behavior in these cases. That means 9.2 and 9.3 will now make these decisions just like 9.4. We could probably kluge things to still ignore the domain's base type if it's json etc, but that seems a bit silly.
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/.