Hi IvanI am currently planning to implement solution, which will insert new documents each minute.
Question1: does the optimize recreate complete index, or it only does some small update?
Question2: if the index becomes invalid after insertion of new document, how does it affect query performance? A bit? or possibly a lot?
There are scenarios, like bulk updates, when it is established practice even in SQL world to switch off indices, import/update data and then rebuild the index.
However, rebuilding index once a minute seems as something, what I would like not to do, if it would take too much time.
Jan
On Tue, Oct 26, 2010 at 3:46 PM, Christian Grün
<christian.gruen@gmail.com> wrote:
Dear Ivan,
> Is it the correct behavior that indexes are automatically removed when I
> remove a document from a collection (version 6.3)? I mean text and attribute
> indexes, I haven't tried full-text index.
Yes, that was one more deliberate design decision to make updates as
fast as possible in BaseX. The indexes are rebuilt whenever the
"optimize" command is called; even so, tests with different systems
have shown that our solution is often superior to implementations that
refresh the index after each update operation. Still, one of our team
members is currently integrating incremental index updates, which will
be offered as an optional feature.
Christian
On Mon, Oct 25, 2010 at 4:26 PM, Ivan Lagunov <ilagunov@evelopers.com> wrote:
> Hello,
--