solr 几个有用的过滤器

http://lucene.apache.org/solr/tutorial.html

Text Analysis

Example queries demonstrating relevancy improving transformations:

    * A search for power-shot matches PowerShot, and adata matches A-DATA due to the use of WordDelimiterFilter and LowerCaseFilter.

可以通过WordDelimiterFilter去除字符间的分割符
LowerCaseFilter 取消大小写区分。这2个filter对中文搜索没什么大的意义。

    * A search for name:printers matches Printer, and features: recharging matches Rechargeable due to stemming with the EnglishPorterFilter.

EnglishPorterFilter 英文单词近似。中文没用。

    * A search for " 1 gigabyte" matches things with GB, and pixima matches Pixma due to use of a SynonymFilter.

同义词管理，这个对中文搜索还是有意义的。