search - Preserving some characters when using to_tsvector in PostgreSQL 9.3 -

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i need process strings "hello world @mention #hashtag" , index them searching using postgresql. need treat @mention , #hashtag specially.

the following produces tsvector:

select to_tsvector('hello world @mention #hashtag')

but output looks this:

"'a':4 'hashtag':5 'hello':1 'mention':3 'world':2"

what see "@" preserved in front of 'mention' , # in front of 'hashtag'. there way me using postgresql ?

i'm not sure tsearch right solution use case. tsearch @ full-text search, sounds want relational data. can parse data in application , create tag/user relationships #hashtags , @mentions?


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