In Zimbra Community 8.0, search has been almost completely revamped to enhance the user experience with smart queries and relevant suggested results.
Search results are weighted for quality so that the best, most relevant results are displayed first. Factors contributing to this scoring include liking, helpfulness, ratings, tagging, bookmarking, views, sharing, subscriptions, comments, and marking as featured.
When using the default search provider, Zimbra Community search supports a simplified subset of the Lucene syntax:
Boolean operators are ignored, except when using field queries - in other words, AND and OR are ignored in most cases.
The query processing in Zimbra Community's search engine, Solr, is extremely configurable. Zimbra Community uses Solr's DisMaxRequestHandler for any query that does not contain a colon (:). For queries that do contain a colon, the StandardRequestHandler is used. The default behavior is for all clauses to match. When you search for the term "class enrollment", Solr (technically the DisMaxRequestHandler) will take responsibility for building a query based on the handler configuration and return documents that match the specified terms.
The DisMaxRequestHandler configuration is the best place to start if you want to tune queries.
Search result pages and search result pages are tagged as "nofollow," ensuring that they are not crawled and indexed by search engines.
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