Some clarification:
I would like to understand how solr processes fq (without cache) versus q
when sort and group are required.
From:
Esther Goldbraich/Haifa/IBM@IBMIL
To:
solr-user@lucene.apache.org
Cc:
Arnon Yogev/Haifa/IBM@IBMIL, Shai Erera/Haifa/IBM@IBMIL
Date:
24/06/2015 02:29 PM
Subject:
fq versus q
Hi,
We are comparing the performance of fq versus q for queries that are
actually filters and should not be cached.
In part of queries we see strange behavior where q performs 5-10x better
than fq. The question is why?
An example1:
q=maildate:{DATE1 to DATE2} COMPARED TO fq={!cache=false}maildate:{DATE1
to DATE2}
sort=maildate_sort* desc
rows=50
start=0
group=true
group.query=some query (without dates)
group.query=*:*
group.sort=maildate_sort desc
additional fqs
Schema:
<field name="maildate" stored="true" indexed="true" type="tdate"/>
<field name="maildate_sort" stored="false" indexed="false" type="tdate"
docValues="true"/>
Thank you,
Esther
-------------------------------------------------
Esther Goldbraich
Social Technologies & Analytics - IBM Haifa Research Lab
Phone: +972-4-8281059
