Apache Solr Reference Guide Covering Apache Solr 6.0

The spellcheck.alternativeTermCount Parameter
Specify the number of suggestions to return for each query term existing in the index and/or dictionary.
Presumably, users will want fewer suggestions for words with docFrequency>0. Also setting this value turns "on"
context-sensitive spell suggestions.
The spellcheck.extendedResults Parameter
This parameter causes to Solr to include additional information about the suggestion, such as the frequency in
the index.
The spellcheck.collate Parameter
If true, this parameter directs Solr to take the best suggestion for each token (if one exists) and construct a new
query from the suggestions. For example, if the input query was "jawa class lording" and the best suggestion for
"jawa" was "java" and "lording" was "loading", then the resulting collation would be "java class loading".
The spellcheck.collate parameter only returns collations that are guaranteed to result in hits if re-queried, even
when applying original fq parameters. This is especially helpful when there is more than one correction per
query.
This only returns a query to be used. It does not actually run the suggested query.
The spellcheck.maxCollations Parameter
The maximum number of collations to return. The default is 1. This parameter is ignored if spellcheck.colla
te is false.
The spellcheck.maxCollationTries Parameter
This parameter specifies the number of collation possibilities for Solr to try before giving up. Lower values ensure
better performance. Higher values may be necessary to find a collation that can return results. The default value
is 0, which maintains backwards-compatible (Solr 1.4) behavior (do not check collations). This parameter is
ignored if spellcheck.collate is false.
The spellcheck.maxCollationEvaluations Parameter
This parameter specifies the maximum number of word correction combinations to rank and evaluate prior to
deciding which collation candidates to test against the index. This is a performance safety-net in case a user
enters a query with many misspelled words. The default is 10,000 combinations, which should work well in most
situations.
The spellcheck.collateExtendedResults Parameter
If true, this parameter returns an expanded response format detailing the collations Solr found. The default value
is false and this is ignored if spellcheck.collate is false.
The spellcheck.collateMaxCollectDocs Parameter
This parameter specifies the maximum number of documents that should be collect when testing potential
Apache Solr Reference Guide 6.0
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