<p>Lucene supports fielded data. When performing a search you can either specify a field, or use the default field. The field names and default field is implementation specific.</p>
<p>You can search any field by typing the field name followed by a colon ":" and then the term you are looking for. </p>
<p>As an example, let's assume a Lucene index contains two fields, title and text and text is the default field.
If you want to find the document entitled "The Right Way" which contains the text "don't go this way", you can enter: </p>
<source>title:"The Right Way" AND text:go</source>
<p>or</p>
<source>title:"Do it right" AND right</source>
<p>Since text is the default field, the field indicator is not required.</p>
<p>Note: The field is only valid for the term that it directly precedes, so the query</p>
<source>title:Do it right</source>
<p>Will only find "Do" in the title field. It will find "it" and "right" in the default field (in this case the text field). </p>
</section>
<sectionname="Term Modifiers">
<p>Lucene supports modifying query terms to provide a wide range of searching options.</p>
<subsectionname="Wildcard Searches">
<p>Lucene supports single and multiple character wildcard searches.</p>
<p>To perform a single character wildcard search use the "?" symbol.</p>
<p>To perform a multiple character wildcard search use the "*" symbol.</p>
<p>The single character wildcard search looks for terms that match that with the single character replaced. For example, to search for "text" or "test" you can use the search:</p>
<source>te?t</source>
<p>Multiple character wildcard searches looks for 0 or more characters. For example, to search for test, tests or tester, you can use the search: </p>
<source>test*</source>
<p>You can also use the wildcard searches in the middle of a term.</p>
<source>te*t</source>
<p>Note: You cannot use a * or ? symbol as the first character of a search.</p>
<p>Lucene supports fuzzy searches based on the Levenshtein Distance, or Edit Distance algorithm. To do a fuzzy search use the tilde, "~", symbol at the end of a Single word Term. For example to search for a term similar in spelling to "roam" use the fuzzy search: </p>
<p>Lucene supports finding words are a within a specific distance away. To do a proximity search use the tilde, "~", symbol at the end of a Phrase. For example to search for a "apache" and "jakarta" within 10 words of each other in a document use the search: </p>
<p>Lucene provides the relevance level of matching documents based on the terms found. To boost a term use the caret, "^", symbol with a boost factor (a number) at the end of the term you are searching. The higher the boost factor, the more relevant the term will be.</p>
<p>Boosting allows you to control the relevance of a document by boosting its term. For example, if you are searching for</p>
<p>Lucene supports using parentheses to group clauses to form sub queries. This can be very useful if you want to control the boolean logic for a query.</p>
<p>To search for either "jakarta" or "apache" and "website" use the query:</p>
