在MongoDB GridFS上进行全文搜索？ [英] Full-text search on MongoDB GridFS?
问题描述
目前您无法在mongo中进行真正的全文搜索： http://www.mongodb.org/display/DOCS/Full+Text+Search+in+Mongo
随意在这里投票：
https://jira.mongodb.org/browse/SERVER- 380
Mongo更多的是一种通用的可扩展数据存储，至今还没有任何全文搜索支持。根据您的使用情况，您可以使用标准b-tree索引以及文本中所有单词的数组，但不会进行词干或模糊匹配等。
但是，我建议将mongodb与基于lucene的应用程序（弹性搜索很流行）相结合。您可以将所有数据存储在mongodb（二进制数据，元数据等）中，然后使用lucene将文档的纯文本索引。或者，如果您的用例是纯全文搜索，您可以考虑使用弹性搜索而不是mongodb。
更新（2013年4月）：
MongoDB 2.4现在支持基本的全文索引！以下是一些有用的资源。
http://docs.mongodb.org/manual/applications/text-search/
http://docs.mongodb.org/manual/reference/command/text/#dbcmd.text
http://blog.mongohq.com/blog/2013/01/22/first-week-with-mongodb-2-dot-4-development-release/
Say, if I want to store PDFs or ePub files using MongoDB's GridFS, is it possible to perform full-text searching on the data files?
You can't currently do real full text search within mongo: http://www.mongodb.org/display/DOCS/Full+Text+Search+in+Mongo
Feel free to vote for it here: https://jira.mongodb.org/browse/SERVER-380
Mongo is more of a general purpose scalable data store, and as of yet it doesn't have any full text search support. Depending on your use case, you could use the standard b-tree indexes with an array of all of the words in the text, but it won't do stemming or fuzzy matches, etc.
However, I would recommend combining mongodb with a lucene-based application (elastic search is popular). You can store all of your data in mongodb (binary data, metadata, etc.), and then index the plain text of your documents in lucene. Or, if your use case is pure full text search, you might consider just using elastic search instead of mongodb.
Update (April 2013): MongoDB 2.4 now supports a basic full-text index! Some useful resources below.
http://docs.mongodb.org/manual/applications/text-search/
http://docs.mongodb.org/manual/reference/command/text/#dbcmd.text
http://blog.mongohq.com/blog/2013/01/22/first-week-with-mongodb-2-dot-4-development-release/
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