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add note about escaping terms 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1384427 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Muir 2012-09-13 17:42:18 +00:00
parent e494b8841b
commit 08f86a018f
1 changed files with 4 additions and 1 deletions
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5
lucene/core/src/java/org/apache/lucene/search/WildcardQuery.java
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@ -28,7 +28,10 @@ import java.util.List;
/** Implements the wildcard search query. Supported wildcards are <code>*</code>, which /** Implements the wildcard search query. Supported wildcards are <code>*</code>, which
* matches any character sequence (including the empty one), and <code>?</code>, * matches any character sequence (including the empty one), and <code>?</code>,
* which matches any single character. Note this query can be slow, as it * which matches any single character. If you want to treat a wildcard as a literal
* character instead, escape it with '\'.
* <p>
* Note this query can be slow, as it
* needs to iterate over many terms. In order to prevent extremely slow WildcardQueries, * needs to iterate over many terms. In order to prevent extremely slow WildcardQueries,
* a Wildcard term should not start with the wildcard <code>*</code> * a Wildcard term should not start with the wildcard <code>*</code>
* *