On Fri, 11 Jun 2004, Kris Jurka wrote:

> On Tue, 8 Jun 2004 [EMAIL PROTECTED] wrote:
> 
> >   JDBC Driver                             :  PostgreSQL 7.4 (Build 213)
> > 
> > I am having an issue with the driver when I do a deleteRow using a
> > ResultSet record.  It skips records.
> > For example, if I have seven records and I select all of them in a
> > ResultSet, spin through each one and call deleteRow() the result is wrong.
> > The 1st, 3rd, 5th, and 7th records are deleted, but the others are not.
> > 
> 
> Behind the scenes the rows are stored in a Vector and there is an "int
> current_row" pointer to the current row.  The problem is that when a row 
> is deleted from the Vector, how should the current_row value be adjusted?  
> Currently nothing happens so current_row effectively points to the next 
> row so that when next() is called that row is skipped.  Simply 
> decrementing current_row on a delete won't work because it introduces the 
> exact same problem except with previous().  When I looked at this problem 
> before I wanted to see if a cleaner solution presented itself than adding 
> a new variable like "boolean onDeletedRow" that would need to be 
> checked or reset in a significant number of places, but perhaps that's the 
> only way to go.
> 

Doing some more reading it appears the ResultSet is supposed to be 
positioned on the previous row, so I have made it do so in both the 7.4 
and 7.4 cvs versions.

Kris Jurka


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