Journal partial matching not working

[Eben]

http://dev.laptop.org/ticket/2423 claims to have added partial matching to the Journal, but I can't seem to get it to function. The following is pasted from a message on the sugar list:

Hey everyone,

I'm just giving two B4s with build 624 a spin around the block and have noticed an odd issue with the search in the journal.

Let's assume I have this file called "QSVU07_Bsp2_ChristophDerndorfer_0425826.pdf" stored on a USB thumbdrive that's accessable via the journal. If I do a search for "qsvu" the file turns up nicely. However if I search for "Bsp2", "*Bsp2", "Bsp2*" or "*Bsp2*" the file isn't displayed. Same thing holds true if I look for "Christoph", "*Christoph", "Christoph*" or "*Christoph*". Only files whose name start with "Christoph..." are displayed.

On the other hand I also have a file called "OLPC Text Test.txt" on that thumbdrive and search for "text" or "test" does immediatly turn up the file I was looking for.

So my question is: Am I missing something here about the syntax of the search or is this a bug?

[marco]

blah* is supported, *blah* is not supported. I doubt there is anything we can do about this for Update.1. This is what the datastore currently support (and probably what xapian support).

[Eben]

I'm of the opinion that typing "blah" should implicitly perform a search for "*blah*". That's the real problem. If in the time being we only support one wildcard in a given word, then "blah" should be interpreted as "*blah blah*" for now.

[marco]

The problem is that the datastore can't perform *blah* at all. blah* is already implicit.

[Eben]

That's why I suggest searching for *blah and (technically or) blah* and show results for both, for now.