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> Hannu Krosing wrote: > >> It seems that my last mail on this did not get through to the list >> ;( >> >> Please consider renaming the new builtin function >> split(text,text,int) >> >> to something else, perhaps >> >> split_part(text,text,int) >> >> (like date_part) >> >> The reason for this request is that 3 most popular scripting >> languages (perl, python, php) all have also a function with similar >> signature, but returning an array instead of single element and the >> (optional) third argument is limit (maximum number of splits to >> perform) >> >> I think that it would be good to have similar function in (some >> future release of) postgres, but if we now let in a function with >> same name and arguments but returning a single string instead an >> array of them, then we will need to invent a new and not so easy to >> recognise name for the "real" split function. >> > > This is a good point, and I'm not opposed to changing the name, but > it is too bad your original email didn't get through before beta1 was > rolled. The change would now require an initdb, which I know we were > trying to avoid once beta started (although we could change it > without *requiring* an initdb I suppose). > > I guess if we do end up needing an initdb for other reasons, we > should make this change too. Any other opinions? Is split_part an > acceptable name? > > Also, if we add a todo to produce a "real" split function that > returns an array, similar to those languages, I'll take it for 7.4. No one commented on the choice of name, so the attached patch changes the name of split(text,text,int) to split_part(text,text,int) per Hannu's recommendation above. This can be applied without an initdb if current beta testers are advised to run: update pg_proc set proname = 'split_part' where proname = 'split'; in the case they want to use this function. Regression and doc fix is also included in the patch. Joe Conway |
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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 several language bindings, including C, Perl, Python, and Tcl, as well as drivers for JDBC. As of v7.3, the ODBC and C++ interfaces have been moved over to the PostgreSQL Projects WebSite @ http://gborg.postgresql.org. 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 ftp://ftp.postgresql.org/pub/. For more information look at our web site located at http://www.postgresql.org/.