Extended match mode

[karantleo]

I have been using Thinking Sphinx for a while in a production
application and have nothing but great things to say.

Recently my customers have been asking to add the extended match mode
functionality so that they could search with '@foo bar' type of
syntax.

From the looks of it I just add :match_mode => :extended to my search
call and it is done. I've tested it a bit and it seems that regular
searching still works the same way as it does in default :any match
mode.

Should I be concerned or aware of any major differences between :any
and :extended match modes that might negatively impact my customers
(performance, errors, etc.)? Or do I basically get :any with addition
of ability to use the extended syntax by setting match mode
to :extended? I am just a little nervous about simply changing this
setting and moving it to production, but I have not been able to find
any disadvantages. Thanks in advance for the input.

[Pat Allan]

I'm not using Sphinx in any popular sites, so I can't say for sure, but I wouldn't think there's any problems with using :extended match mode. Keep in mind, though, that it uses ANDs for implicit logic, instead of ORs - and so your users will find their standard searches work like :all instead of :any.

--
Pat

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[karantleo]

Pat,

Isn't :all the default thinking sphinx match mode (if no match mode is
specified)? And if so users should see no difference, right?

Anton

[Pat Allan]

Hi Anton

You're correct - it's just that you mentioned :any match mode, so that's what I assumed you're using. If you're using :all instead, then that's exactly how :extended behaves with no modifiers.

--
Pat

[karantleo]

Great. Thanks, Pat. Once again, outstanding job on thinking sphinx!