you can delete by query like -category:category1 On Sun, Feb 19, 2012 at 9:41 PM, Li Li <fancye...@gmail.com> wrote:
> I think you could do as follows. taking splitting it to 3 indexes for
> example.
> you can copy the index 3 times.
> for copy 1
> for(int i=0;i<reader1.maxDocs();i+=3){
> reader1.delete(i);
> }
> for copy
> for(int i=1;i<reader2.maxDocs();i+=3){
> reader2.delete(i);
> }
> ....
> and then optimize these 3 indexes
>
