Displaying 20 results from an estimated 1000 matches similar to: "Obtaining actual match count if using set_collapse_key()"
2007 Oct 16
1
Matches estimate varies with sorting method
Hi all,
I found that the figure returned by MSet::get_matches_estimated() varies
depending on how results are to be sorted.
For instance, in my index, value 4 contains date and time in the format
"yyyymmddhhmmss". For the same query, the number of results will be
estimated to 20000+ when results are first sorted by date and time
with set_sort_by_value_then_relevance(4) and to only 100
2014 Aug 07
2
Global number of matches
Hi,
is there a way to get the number of all possible matches for a specific
query?
Some api call like
Xapian::doccount Xapian::Enquire::get_number_of_matches();
Best wishes
Wilm
2007 Sep 20
3
Incorrect get_matches_estimated() of Xapian::Mset
Hello, As I know, get_matches_estimated() return an estimate for the number of documents with matches the query.
But now, I found it get a disparity between the return value and real mathced number. For an example: the real matched number is 58, but the return value is 458; so when the users click the hinder page, get a blank page ... so they often complain to me.
I found that the main reason is
2011 Feb 22
1
collapsing by a key in a compound database
Hello all.
I have a problem with collapsing by a key in a compound database. I have
2 databases (e.g. clients and client branches), both of them have the
same attribute (with the same valueno), `client_id'.
What I need is to search in both these databases and collapse results by
`client_id' to get client IDs (set_collapse_key is used with
collapse_max=1).
The problem is that I receive 2
2023 Aug 17
1
does Xapian::Enquire hold an MVCC revision?
In other words, is it possible to avoid duplicates if new
documents are inserted into the DB by another process in-between
->get_mset calls when reusing Xapian::Enquire objects?
I do some expensive processing on each mset window, so I always
limit the results to limit heap usage even if I'm planning on
going through a big chunk of the DB:
$mset = $enq->get_mset(0, 1000);
2023 Aug 18
1
does Xapian::Enquire hold an MVCC revision?
On Thu, Aug 17, 2023 at 09:28:26PM +0000, Eric Wong wrote:
> In other words, is it possible to avoid duplicates if new
> documents are inserted into the DB by another process in-between
> ->get_mset calls when reusing Xapian::Enquire objects?
The Database object itself effectively does (it works in a snapshot of
the state of the database when you open it, or last called reopen()
which
2014 Apr 13
2
Adding an external library to Xapian
My code is not on Github. I am using the tarball as of now. The following
it the error that occurred:
http://pastebin.com/cVJrjUZX
On Sun, Apr 13, 2014 at 8:16 PM, James Aylett <james-xapian at tartarus.org>wrote:
> On 13 Apr 2014, at 15:37, Pallavi Gudipati <pallavigudipati at gmail.com>
> wrote:
>
> > A linker error is encountered even after following the above
2010 Apr 28
1
Xapian 1.0.20 released
I've uploaded Xapian 1.0.20 (including Search::Xapian 1.0.20.0), which
as usual you can download from:
http://xapian.org/download
The most notable changes in this release are:
Xapian::MSet:
* Fix incorrect values reported by get_matches_estimated(),
get_matches_lower_bound(), and get_matches_upper_bound() in certain cases
when sorting and collapsing (ticket#464).
getopt-related build
2013 Aug 26
2
Perl interface isn't working in 1.2.x
On 08/25/2013 05:02 PM, Olly Betts wrote:
> So the simple fix is
> probably just to install the perl-Search-Xapian RPM instead.
Thanks, the Centos 6 repos don't have that rpm and the
http://xapian.org/download page seems to only cover the XS bindings, if
I am reading this correctly:
But I was able to remove the rpm packages and compile and install the
core and swig from source.
2023 Aug 28
1
DatabaseModifiedError while iterating on mset
Olly Betts <olly at survex.com> wrote:
> On Wed, Aug 23, 2023 at 01:53:27PM +0000, Eric Wong wrote:
> > I'm already retrying the ->get_mset operations; but now I'm
> > wondering where I'd hit DatabaseModifiedErrors while inside a
> > Xapian::MSetIterator loop.
> >
> > I assume ->get_document is a place where it gets thrown;
> > but
2023 Aug 27
1
DatabaseModifiedError while iterating on mset
On Wed, Aug 23, 2023 at 01:53:27PM +0000, Eric Wong wrote:
> I'm already retrying the ->get_mset operations; but now I'm
> wondering where I'd hit DatabaseModifiedErrors while inside a
> Xapian::MSetIterator loop.
>
> I assume ->get_document is a place where it gets thrown;
> but once a document is retrieved, can iterating through
> terms in one document
2006 May 10
2
ruby bindings odds and ends
In the Ruby bindings, set_X and get_X are renamed to remove the get/set,
so MSet::get_matches_estimated() becomes a read-only property (if I have
my terminology right) of the Ruby MSet class called matches_estimated.
This matches how a Ruby programmer would expect a class to be designed.
I was looking through the getters and setters list. I wonder if a few
entries shouldn't be there, (the
2011 Feb 11
2
PHP Binding and SWIG Director for XapianMatchDecider
Hi,
I try to use XapianMatchDecider to filtering results, but the code :
$Decider = new MatchDecider_Search($XapianDatabase->_cPtr);
$mset = $XapEnquire->get_mset(0, 3000, null, $Decider);
Always return :
PHP Fatal error: No matching function for overloaded 'Enquire_get_mset'
in xapian.php on line 1082
I saw that SWIG was not supporting Directors for PHP, but now, it seems
to
2009 Jun 10
1
Very far out and static get_matches_estimated
Hi,
I'm getting quite odd results using get_matches_estimated() that I
haven't seen before; we've just added a bunch of new data to the
database. Xapian 1.0.7, checkatleast is set to 100.
The database will get new stuff added to it automatically around 8.30am
BST, so it's possible this might affect the links I provide, I guess.
But I'll note what is currently happening as
2009 Jan 27
1
Segmentation fault in MSetIterator get_weight
Hi,
I'm using xapian with c# and mono and i'm having a segfault in get_weight.
When i print the index variable, the value is clearly too high.
I think something write over it. Do you have any idea on how i could
trace the beginning of the segmentation fault ?
Thanks,
--
Yann
2012 Jan 20
3
get_docid???
my $mset = $enq->get_mset($nstart,$nrecords);
for(my $mit=$mset->begin(); $mit != $mset->end();$mit++) {
my $doc = $mit->get_document();
my $dat = $doc->get_data();
my $id = $doc->get_docid();
}
[Fri Jan 20 10:35:06 2012] newmail.cgi: Can't locate
auto/Search/Xapian/Document/get_docid.al in @INC (@INC contains:
/etc/perl
2013 Jan 17
1
FASTER Search
I am suffering for slow searching performance on Xapian.
I am using Xapian for indexing about 150,000,000 documents.
It was implemented in C++;
The performance of searching was not that fast.
e.g. Searching a query, which includes about 20 terms, needs 2 secs avg.
For searching, I followed such steps:
1. construct a QueryParser for certain string
2. parse the query to get a Xapian::Query
2007 Feb 09
1
PHP Binding and dbi2omega questions
Hi All,
I've installed Xapian and the php module. I've set up a script for use with
scriptindex and dbi2omega for getting data from the db into the index
easily, the script file is as follows:
===============================
id : field=id
title : index
title: field=title
description : index
description : truncate=50 field=content
=============================
However, when querying
2013 Feb 20
1
Sticky results
Hi there,
I have a xapian index whose results are being sorted by a value, with (PHP bindings):
$enquire->set_sort_by_value($sort_data_value);
This is because I want the results returned in chronological order of publication date. However, I now have a need to have certain results be 'sticky' at the top of the resultset, regardless of their publication date. Obviously there are
2013 Aug 21
2
Perl interface isn't working in 1.2.x
At least it isn't working the way it used to.
Code:
$db = Search::Xapian::Database->new( $dx );
my $qp = Search::Xapian::QueryParser->new();
my $dbSize=$db->get_doccount();
# $qp->set_stemmer(new Search::Xapian::Stem("english"));
# $qp->set_stemming_strategy(STEM_SOME);
# $qp->set_default_op($defaultop);
my $par =