Apache Solr Reference Guide Covering Apache Solr 6.0

http://localhost:8983/solr/techproducts/select?defType=dismax&q=video&fl=name,s
core,inStock
http://localhost:8983/solr/techproducts/select?defType=dismax&q=video&qt=instoc
k&fl=name,score,inStock
One of the other really cool features in this handler is robust support for specifying the
"BooleanQuery.minimumNumberShouldMatch" you want to be used based on how many terms are in your user's
query. These allows flexibility for typos and partial matches. For the dismax handler, one and two word queries
require that all of the optional clauses match, but for three to five word queries one missing word is allowed.
http://localhost:8983/solr/techproducts/select?defType=dismax&q=belkin+ipod
http://localhost:8983/solr/techproducts/select?defType=dismax&q=belkin+ipod+gib
berish
http://localhost:8983/solr/techproducts/select?defType=dismax&q=belkin+ipod+app
le
Just like the StandardRequestHandler, it supports the debugQuery option to viewing the parsed query, and the
score explanations for each document.
http://localhost:8983/solr/techproducts/select?defType=dismax&q=belkin+ipod+gib
berish&debugQuery=true
http://localhost:8983/solr/techproducts/select?defType=dismax&q=video+card&debu
gQuery=true
The Extended DisMax Query Parser
The Extended DisMax (eDisMax) query parser is an improved version of the DisMax query parser. In addition to
supporting all the DisMax query parser parameters, Extended Dismax:
supports the full Lucene query parser syntax.
supports queries such as AND, OR, NOT, -, and +.
treats "and" and "or" as "AND" and "OR" in Lucene syntax mode.
respects the 'magic field' names _val_ and _query_. These are not a real fields in the Schema, but if
used it helps do special things (like a function query in the case of _val_ or a nested query in the case of
_query_). If _val_ is used in a term or phrase query, the value is parsed as a function.
includes improved smart partial escaping in the case of syntax errors; fielded queries, +/-, and phrase
queries are still supported in this mode.
improves proximity boosting by using word shingles; you do not need the query to match all words in the
document before proximity boosting is applied.
includes advanced stopword handling: stopwords are not required in the mandatory part of the query but
are still used in the proximity boosting part. If a query consists of all stopwords, such as "to be or not to
be", then all words are required.
includes improved boost function: in Extended DisMax, the boost function is a multiplier rather than an
addend, improving your boost results; the additive boost functions of DisMax ( bf and bq) are also
supported.
supports pure negative nested queries: queries such as +foo (-foo) will match all documents.
lets you specify which fields the end user is allowed to query, and to disallow direct fielded searches.
Extended DisMax Parameters
In addition to all the
The mm.autoRelax Parameter
DisMax parameters, Extended DisMax includes these query parameters:
If true, the number of clauses required ( minimum should match)
will automatically be relaxed if a clause is
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