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31d2efaef5
This is how it was documented originally, but several years ago somebody decided that DEFAULT isn't a type of constraint. Well, the grammar thinks it is. The documentation was wrong in two ways: it alleged that DEFAULT had to appear before any other kind of constraint, and it alleged that you can't prefix a DEFAULT clause with a "CONSTRAINT name" clause, when in fact you can. (The latter behavior probably isn't SQL-standard, but our grammar has always allowed it.) This patch responds to Fujii Masao's observation that the ALTER TABLE documentation mistakenly implied that you couldn't include DEFAULT in ALTER TABLE ADD COLUMN; though this isn't the way he proposed fixing it.
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/.