Lucene 2.3.1 supports wildcard as the first character

[Andrea Westerinen]

But I still get an error with Stardog 1.1.3.

Can the next release use a later Lucene that allows this?

Andrea

[Mike Grove]

On Mon, Mar 4, 2013 at 2:03 PM, Andrea Westerinen <arwest...@gmail.com> wrote:

But I still get an error with Stardog 1.1.3.

Can the next release use a later Lucene that allows this?

Stardog uses Lucene 4.0.0, which has been shipped with Stardog since v1.1.  Prior to that, we used several of the Lucene 3.x releases.  We've never supported or used Lucene 2.3.1.

Are you simply requesting that Stardog support wildcards as the leading character?  This is certainly something we could do for the next release, but as the Apache documentation [1] points out, it can be an expensive operation.  So while we can support it, there's not much we can do about its performance; you might see if there is another way to get the information you're looking for without resorting to a search that the Lucene folks deem to be too expensive to enable by default.

Cheers,

Mike

[1] http://wiki.apache.org/lucene-java/LuceneFAQ#What_wildcard_search_support_is_available_from_Lucene.3F

 

Andrea

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[Andrea Westerinen]

Yes, our end customer REALLY wants to find items based on a string containing some sequence anywhere.

Yes, it is expensive, but when you can't find something, then you really need it.

Andrea

[Kendall Clark]

On Mon, Mar 4, 2013 at 4:17 PM, Andrea Westerinen
<arwest...@gmail.com> wrote:
> Yes, our end customer REALLY wants to find items based on a string
> containing some sequence anywhere.
>
> Yes, it is expensive, but when you can't find something, then you really
> need it.

This is simple: we will give users the ability to break their stuff
into pieces and then they get to keep all the broken pieces.

That is, no complaining that this slow thing is slow.

Cheers,
Kendall

[Andrea Westerinen]

When do I complain? :-)

Andrea