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more nearly matching the core SQL scanner. The user-visible effects are: * Block comments (slash-star comments) now nest, as per SQL spec. * In standard_conforming_strings mode, backslash as the last character of a non-E string literal is now correctly taken as an ordinary character; formerly it was misinterpreted as escaping the ending quote. (Since the string also had to pass through the core scanner, this invariably led to syntax errors.) * Formerly, backslashes in the format string of RAISE were always treated as quoting the next character, regardless of mode. Now, they are ordinary characters with standard_conforming_strings on, while with it off, they introduce the same set of escapes as in the core SQL scanner. Also, escape_string_warning is now effective for RAISE format strings. These changes make RAISE format strings work just like any other string literal. This is implemented by copying and pasting a lot of logic from the core scanner. It would be a good idea to look into getting rid of plpgsql's scanner entirely in favor of using the core scanner. However, that involves more change than I can justify making during beta --- in particular, the core scanner would have to become re-entrant. In passing, remove the kluge that made the plpgsql scanner emit T_FUNCTION or T_TRIGGER as a made-up first token. That presumably had some value once upon a time, but now it's just useless complication for both the scanner and the grammar. |
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| contrib | ||
| doc | ||
| src | ||
| aclocal.m4 | ||
| configure | ||
| configure.in | ||
| COPYRIGHT | ||
| GNUmakefile.in | ||
| Makefile | ||
| README | ||
| README.CVS | ||
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/.