: Hi, I can't find anywhere good documentation of what syntax is allowed : in Solr 4.4 regular expression searches. I can get regexes to work, but
the docs on solr's query parser syntax should be pointing you here... https://lucene.apache.org/core/4_0_0/queryparser/org/apache/lucene/queryparser/classic/package-summary.html which has a section on the regex support... https://lucene.apache.org/core/4_0_0/queryparser/org/apache/lucene/queryparser/classic/package-summary.html#Regexp_Searches Which says "he current supported syntax is documented in the RegExp class" linking here... https://lucene.apache.org/core/4_0_0/core/org/apache/lucene/util/automaton/RegExp.html?is-external=true : the same search with a predefined character class (like \s) or a word : boundary matcher (\b) returns nothing. I am searching an untokenized : field and using a plain space (' ') instead of '\s' works fine. It's impossible for us to guess what sort of problem you might be having, since you haven't shown us... * any actual examples of requests you are trying to send * any logs showing how those requests are recieved by solr * any debugQuery=true response showing how those queries got parsed * any example docs in your index. https://wiki.apache.org/solr/UsingMailingLists#Information_useful_for_searching_problems -Hoss
