10 August 2009

Lucene là cái gì

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Field.Keyword – The data is stored and indexed but not tokenized. This is most useful for data that should be stored unchanged such as a date. In fact, the Field.Keyword can take a Date object as input.

Field.Text – The data is stored, indexed, and tokenized. Field.Text fields should not be used for large amounts of data such as the article itself because the index will get very large since it will contain a full copy of the article plus the tokenized version.

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