Apache Solr Reference Guide Covering Apache Solr 6.0

0 and maxPosAsterisk to 1.
maxFractionAsterisk (float, default = 0.0) An additional parameter that triggers the reversal if asterisk ('*')
position is less than this fraction of the query token length.
minTrailing (integer, default = 2) The minimum number of trailing characters in a query token after the last
wildcard character. For good performance this should be set to a value larger than 1.
Example:
In: "*foo *bar"
Tokenizer to Filter: "*foo", "*bar"
Out: "oof*", "rab*"
Shingle Filter
This filter constructs shingles, which are token n-grams, from the token stream. It combines runs of tokens into a
single token.
Factory class: solr.ShingleFilterFactory
Arguments:
minShingleSize: (integer, default 2) The minimum number of tokens per shingle.
maxShingleSize: (integer, must be >= 2, default 2) The maximum number of tokens per shingle.
outputUnigrams: (true/false) If true (the default), then each individual token is also included at its original
position.
outputUnigramsIfNoShingles: (true/false) If false (the default), then individual tokens will be output if no
shingles are possible.
tokenSeparator: (string, default is " ") The default string to use when joining adjacent tokens to form a shingle.
Example:
Default behavior.
In: "To be, or what?"
Tokenizer to Filter: "To"(1), "be"(2), "or"(3), "what"(4)
Out: "To"(1), "To be"(1), "be"(2), "be or"(2), "or"(3), "or what"(3), "what"(4)
Example:
A shingle size of four, do not include original token.
Apache Solr Reference Guide 6.0
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