DSpace and Date Range Queries

[Maruan Sahyoun]

Dear All,

I have a date range field dc.coverage.temporal which leads to different results when being searched for using the DSpace Serach Field and a direct Solr query

dc.identifier:19900816_lh_lu_422 && dc.coverage.temporal:[1991 TO 1992]

in the search fields doesn't find the entry 

where

curl -g "http://localhost:8983/solr/search/select?q=dc.identifier:19900816_lh_lu_422&&dc.coverage.temporal:%5B1991%20TO%201992%5D"

against Solr does find it.

The dc.coverage.temporal field has "[1990 TO 1995]"

Changing the DSpace search to

dc.identifier:19900816_lh_lu_422 && dc.coverage.temporal:[1990 TO 1992]

i.e. using the lower bounds as the start does find the enry.

Is there something I'm doing/expecting wrong?

With kind regards

Maruan