On 9/13/2013 1:56 AM, Prasi S wrote:
I want to do regex search in solr.
E.g: Googl* . In my query api, i have used the ClientUtils.escapeQueryChars
funtion to escape characters special to solr.
In the above case, a search for
1. Google -> gives 677 records.
2. Googl* -> Escaped as Googl\* in code-> gives 12 results
3. When given q=Google* directly in the Browser -> gives 677 records.
Which is correct if I want to achieve regex search ( Googl*). Should i
restrict from escaping *, ? in the code for handling regex?
Your third example is using * as a wildcard. That's NOT the same thing
as regex.
If you sent q=/Google.*/ then that would be a regex that should do the
same thing as your wildcard example. This requires Solr 4.0 or later.
You can't use the escapeQueryChars method if you're wanting to do regex
or wildcard search. The point behind that escape method is to search
for special characters rather than let them have their special meanings.
Thanks,
Shawn
