I can add index support and support for arbitrary distance between
lexeme.
It appears to me that supporting arbitrary boolean expression will be
complicated. Can we pull out something from TSQuery?
I don't very like an idea to have separated interface for phrase search. Your
patch may be a module and used by people who really wants to have a phrase search.
Introducing new operator in tsquery allows to use already existing
infrastructure of tsquery such as concatenations (&&, ||, !!), rewrite subsystem
etc. But new operation/types specially designed for phrase search makes needing
to make that work again.
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Teodor Sigaev E-mail: [EMAIL PROTECTED]
WWW: http://www.sigaev.ru/
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