Solr suggester1/22/2024 ![]() See the Suggester Documentation for more details on the different types of Lookup Implementations. TSTLookup: “a simple, compact trie-based lookup”.WFSTLookup: offers more fine-grained control over results ranking than FST.Additional suggester implementations are available: Using a combination of methods, we can get more complete results. Also the results will have highlights around the provided terms inside the suggestions. The second uses the AnalyzingInfixLookupFactory: which will look inside the terms for matches.This lookup implementation will not find terms where the provided characters are in the middle. The first uses the FuzzyLookupFactory: a FST-based sugester (Finite State Transducer) which will match terms starting with the provided characters while accounting for potential misspellings.In this case we’re setting up a suggest component that has two suggester data sources available to it. Now that we have the schema set up, we need to define a searchComponent that will do the suggesting. Define the suggest component for the index: This is not strictly necessary, existing types may be used. This particular type will remove all non alphanumeric characters and be case-insensitive as well as tokenizing the contents of the field. Next we need to add a new type that the suggester will use to analyze and build the suggestion fields. ![]() Define a custom field type for the suggest component: These fields can be added to documents based on your specific indexing strategy. In this case these fields get their values form corresponding fields in our sitecore instance. The suggestion field should be a text type and the weight field should be a float type. One to store the suggestion text and another to store the weight of that suggestion. Then I added two fields that will be used by the suggester. ![]() In order to create smaller documents I trimmed the fields down to the bare minimums. In my case I created a separate index to handle this, it could be combined into an existing index such as sitecore_web_index (or any other custom indexes you may be using), depending on what your needs are. This post will go through the steps to configure an index to provide search suggestions using this component. See this document for details.Īs of 4.8 a new component is available, the solr.SuggestComponent. If you’re using a version prior to 4.8, this can be accomplished using the SpellCheckComponent. Doing this is pretty easy with Solr, an open source enterprise search platform, powered by Java, Apache and Lucene. I needed to provide search term suggestions based on characters that the user has typed into the search box.
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