Faceting on a multi-value field?
I wonder if your positionIncrementGap for your field definition in your
schema is 256. I am not sure what it defaults to. But it seems possible
if it's 256 it could lead to what you observed. Try explicitly defining
it to be really really big maybe? I'm not sure why it doesn't default
to Really Really Big in the first place -- if it doesn't, not sure what
it defaults to -- it's going to be much more common for people to assume
Solr behaves like it does when it's Really Big, then for someone to
actually want a small one.
I was going to copy and paste some documentation on
positionIncrementGap, but I can't find that either. It's at least
included in the example schema.xml, so you can see where to put it.
Jonathan
Niall O'Connor wrote:
Hi,
Has anyone come across a situation where they have seen their facet
field values wrap into a new facet entry when the value exceeds 256
characters?
For example:
<lst name="facet_fields">
<lst name="pub_articletitle">
<int name="1">2302</int>
<int name="hiv">1403</int>
<int name="type">1382</int>
</lst>
<lst name="tissue-antology">
<int name="Lymph node,Organ component,Cardinal organ part,Anatomical
structure,Material anatomical entity,Physical anatomical
entity,Anatomical entity">419</int>
<int name="Left frontal lobe,Frontal lobe,Lobe of cerebral
hemisphere,Segment of cerebral hemisphere,Segment of
telencephalon,Segment of forebrain,Segment of brain,Segment of
neuraxis,Organ segment,Organ region,Cardinal organ part,Anatomical
structure,*Material anatom">236</int>
<int name="ical entity,Physical anatomical entity,Anatomical
entity">236</int>*
</lst>
As you can see the last value in the tissue-antology list is split
between two facet values.
Should I open a bug for this? Or is this something configurable?
Niall
