Re: [HACKERS] Much Ado About COUNT(*)

2005-01-12 Thread Marek Mosiewicz
I agree with last statement. count(*) is not most important. Most nice thing with index only scan is when it contains more than one column. When there is join among many tables where from each table only one or few columns are taken it take boost query incredibly. For exmaple on when you have cust

Re: [HACKERS] Compiere ERP and SQL quirks

2005-01-07 Thread Marek Mosiewicz
Upps sorry now found it on TODO list. I was not aware that it is SQL92 standard. Is it difficult to implement ? Simplest approach would be to rewrite it to UPDATE t1 set col1 = (select cola ...), col2 = (select colb) but it would result in not optimal plan. Marek Mosiewicz

[HACKERS] Compiere ERP and SQL quirks

2005-01-07 Thread Marek Mosiewicz
be quite useful in another cases. Would be it diffcult and possible to add such syntax to PostgreSQL ? Marek Mosiewicz http://www.jotel.com.pl ---(end of broadcast)--- TIP 3: if posting/reading through Usenet, please send an appropriate

[HACKERS] OLE DB PostgreSQL provider

2003-01-28 Thread Marek Mosiewicz
I'm looking for people who want to join OLE DB Provider project. It is partially finished. I'm looking for people who want to help. -- Marek Mosiewicz <[EMAIL PROTECTED]> ***r-e-k-l-a-m-a** Chcesz oszczedzic na kosztach obslugi bankowej ? mBIZNES - kon

Re: [HACKERS] Roadmap for a Win32 port

2002-06-18 Thread Marek Mosiewicz
I know that Apache Group created special library to handle difference between different platforms (including win32). They had similar problems porting Apache to Windows. They build very portable threads api (win32, POSIX, native Linux thread and more) There is also all IPC stuff (mutex, signals m

[HACKERS] PostgreSQL OLE DB Provider

2002-06-11 Thread Marek Mosiewicz
Do you know any attempts to write native OLE DB provider for PostgreSQL (it would give broader support for VS Net). I would like to write such provider and I want to know if sombody tried it before. Could somebody help me with protocol issues (I have read Backend/Frontend Protocol and studied ODBC