Thanks Chris: I will contact you if they decided to go with this. Pamela -----Original Message----- From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Chris Travers Sent: Wednesday, December 28, 2005 10:12 AM To: pamela@xxxxxxxxxxxx Cc: pgsql-general@xxxxxxxxxxxxxx Subject: Re: [GENERAL] new beginner to postgresql. Looking at it for a church I have one customer running a point of sale system using PostgreSQL and SQL-Ledger with a fairly heavy set of modifications in SQL-Ledger. Feel free to contact me off-list if you need any pointers. SQL-Ledger can be found at http://www.sql-ledger.org. An unofficial wiki with lots of developer documentation can be found at http://www.metatrontech.com/sql-ledger-wiki/. A patch file containing the changes I have made for POS capability enhancements can be found at http://www.metatrontech.com/projects/ (these enhancements include pole display support, some printing enhancements, an open drawer button, and a few other things). The four location requirement is going to be possibly tricky. You could do it with one schema per location and then use Slony-I to replicate the changes back and forth. You could then have a reporting schema that would be used for your GL reports. This could be done using SQL-Ledger with some modification and a simple interface in Perl, PHP, Ruby or another language. With a little work it would probably even be possible to have a separate instance of SL for reporting the GL activities but this poses some unique problems, particularly because the data model of SL doesn't do a good job of protecting the integrity of the data (this is a particular problem when you are looking at integrating third-party apps with it). This is not an insoluble problem and it can be solved on the RDBMS level-- I have a beta patch which alters the schema to protect the data but it is relatively untested and for this type of app, I don't want to destribute publically until it has more testing, though if you want to test it please let me know. At any rate it shows what can be accomplished within PostgreSQL without even touching the application. HTH, Chris Travers Pamela wrote: > Hello: > > I was wondering if anyone has setup a point-of-sale system with > postgresql. Also, I will have to create a database for a church that > requires lots of tables and subcategories. They have 4 different > locations and wish to be interconnected amongst each other, yet remain > distinct and autonomous. They have lots different categories (women's > group, kid's group, seminars, etc.) and funds within funds. Any > suggestions/examples of how someone could go about the data-modeling > for this. Also, was thinking of using .php and ruby to connect them > via the net. I will also, require setting up a general ledger and a > full accounting system for them. Inventory for books, cds. I am > looking at multiple sources for them including MySQL, Microsoft.Net > (really, really don't want to go there) and any other suggestions > individuals may have. > > Thanks and help is much appreciated. > > Pamela > ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
