[Xapian-discuss] Testing for scalar intervals.
Jesper Krogh
jesper at krogh.cc
Fri Dec 15 13:35:47 GMT 2006
Hi.
I'm new to Xapian.
I have "documents" that contains some scalar values.. and I'd like to
search them .. this is for example the "documentsize":
I've read this:
http://lists.tartarus.org/pipermail/xapian-discuss/2005-January/000681.html
That suggests:
my $query = Search::Xapian::Query->new("foo");
my $filter = Search::Xapian::Query->new(OP_OR, map {"XAGE$_"} (20..30));
$filter = Search::Xapian::Query->new(OP_AND, $filter, "XSEXm");
my $enquire = $db->enquire(OP_FILTER, $query, $filter);
But when search large intervals this filterexpression get large and the
performance suffers. .. And open intervals are even unsolved:
"give me documents matching "soap opera" that is larger than 1500 (bytes)"
Indexing "DOCSIZE1500" into the engine.
Is there a way to query the index for these scalar values .. or is
post-processing of the document-set the only option?
(Using the Perl-API for Xapian)
Jesper
--
Jesper Krogh
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