CBLQueryFullTextFunction
@interface CBLQueryFullTextFunction : NSObjectFull-text function.
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                  Creates a full-text rank function with the given full-text index name. The rank function indicates how well the current query result matches the full-text query when performing the match comparison. DeclarationObjective-C + (nonnull CBLQueryExpression *)rank:(nonnull NSString *)indexName;ParametersindexNameThe full-text index name. Return ValueThe full-text rank function. 
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                  Not available DeclarationObjective-C - (nonnull instancetype)init;
 CBLQueryFullTextFunction Class Reference
        CBLQueryFullTextFunction Class Reference