[
HTTPS://ISSUES.APACHE.ORG/JIRA/BROWSE/NUTCH-445?PAGE=COM.ATL
ASSIAN.JIRA.PLUGIN.SYSTEM.ISSUETABPANELS:COMMENT-TABPANEL#AC
TION_12476665 ]
DOUG CUTTING COMMENTED ON NUTCH-445:
------------------------------------
SETTING THE BOOST TO NON-ZERO PERMITS A "SITE:"
QUERY WITH NO OTHER TERMS, BUT AT THE COST OF INHIBITING THE
CONVERSION OF THE CLAUSE TO A CACHED LUCENE FILTER, WHICH
CAN BE A SUBSTANTIAL OPTIMIZATION. I THINK IT'S BETTER TO
LEAVE THE BOOST AS ZERO, AND THEN (SEPARATELY) FIX THE
CONVERSION-TO-FILTER CODE TO NOT PERFORM THIS OPTIMIZATION
WHEN NO OTHER QUERY TERMS ARE PRESENT.
> DOMAIN ?NDEXING / QUERY FILTER
> ------------------------------
>
> KEY: NUTCH-445
> URL:
HTTPS://ISSUES.APACHE.ORG/JIRA/BROWSE/NUTCH-445
> PROJECT: NUTCH
> ISSUE TYPE: NEW FEATURE
> COMPONENTS: INDEXER, SEARCHER
> AFFECTS VERSIONS: 0.9.0
> REPORTER: ENIS SOZTUTAR
> ATTACHMENTS: INDEX_QUERY_DOMAIN_V1.0.PATCH,
INDEX_QUERY_DOMAIN_V1.1.PATCH,
INDEX_QUERY_DOMAIN_V1.2.PATCH,
TRANSLATINGRAWFIELDQUERYFILTER_V1.0.PATCH
>
>
> HOSTNAME'S CONTAIN INFORMATION ABOUT THE DOMAIN OF TH
HOST, AND ALL OF THE SUBDOMAINS. INDEXING AND SEARCHING THE
DOMAINS ARE IMPORTANT FOR INTUITIVE BEHAVIOR.
> FROM DOMAININDEXINGFILTER JAVADOC :
> ADDS THE DOMAIN(HOSTNAME) AND ALL SUPER DOMAINS TO THE
INDEX.
> * <BR> FOR HTTP://LUCENE.APACHE.ORG/NUTCH/ THE
> * FOLLOWING WILL BE ADDED TO THE INDEX : <BR>
> * <UL>
> * <LI>LUCENE.APACHE.ORG </LI>
> * <LI>APACHE</LI>
> * <LI>ORG </LI>
> * </UL>
> * ALL HOSTNAMES ARE DOMAIN NAMES, BUT NOT ALL THE
DOMAIN NAMES ARE
> * HOSTNAMES. IN THE ABOVE EXAMPLE HOSTNAME LUCENE IS A
> * SUBDOMAIN OF APACHE.ORG, WHICH IS ITSELF A SUBDOMAIN
OF
> * ORG <BR>
> *
>
> CURRENTLY BASIC INDEXING FILTER INDEXES THE HOSTNAME IN
THE SITE FIELD, AND QUERY-SITE PLUGIN
> ALLOWS TO SEARCH IN THE SITE FIELD. HOWEVER
SITE:APACHE.ORG WILL NOT RETURN HTTP://LUCENE.APACHE.ORG
> BY INDEXING THE DOMAIN, WE CAN BE ABLE TO SEARCH
DOMAINS. UNLIKE
> THE SITE FIELD (INDEXED BY BASICINDEXINGFILTER)
SEARCH, SEARCHING THE
> DOMAIN FIELD ALLOWS US TO RETRIEVE LUCENE.APACHE.ORG
TO THE QUERY
> APACHE.ORG.
>
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