similar to: searching and sorting by date

Hello, I wonder if there is a way to cause Xapian to order a result set purely by docid. In other words, once the result set has been determined, I'd like the results to be returned to me ordered by their docid, as opposed to by their match relevance. The problem at hand is that I'm building a search engine for a mailing list and I would like to return matches sorted by date; ordering by

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

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);

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.

Hello, is there a way to optimize sorting by certain values for queries which return a huge amount of results? For example, I just want a simple query that gives me the 200 most recent emails out of millions. The elapsed time for get_mset increases as the number of documents ($n * 2000) increases. I suppose I could store a pre-sorted set using SQLite or similar. Thanks in advance for any

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

Olly Betts <olly at survex.com> wrote: > On Fri, Mar 30, 2018 at 05:21:43PM +0000, Eric Wong wrote: > > Hello, is there a way to optimize sorting by certain values > > for queries which return a huge amount of results? > [...] > > $enquire->set_sort_by_value_then_relevance(0, 1); > > If you're just wanting the 200 newest, it'll be faster not to

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

Hi, I'm trying to sort a list of results alphabetically, but it's coming out in the wrong direction. Indexing is done like this (PHP bindings): // Tag name as a value (for sorting) $doc->add_value(2, strtolower($obj->tag)); And searching like this: $enquire->set_sort_by_value(2); But for some reason, the results are coming out Z-A, not A-Z. I've tried setting true as

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

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

Hi all, I have spent more than 3 hours trying to figure out how Xapian documents fields works ! It seems that I failed so I ask for help. I am using Xapian 0.9.2 with Python bindings and Xapwrap (Python wrapper for xapian) on Fedora Core 3. I have added custom fields like 'uri', 'title', etc and I wish to view them in my Omega results. I am also using an Omega XML customized

Hi all, There's been a odd bug reported to us by Daniel Menard while working on the PHP bindings: "I then tried to run the dotest target...All tests passed, except the one about get_matching_terms (smoketest.php line 94). I added this line before the exit: for ($i=0; $i<strlen($terms); $i++) echo $c=ord($terms[$i]), ' ', ($c>31?$terms[$i]:''), "\n";

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

Hello, I have found that the use of sort_by_value very slow. 16800 result, return to the previous 10, sorting takes about 25ms. And if you do not sort, returns 10, need only about 0.3ms. How to make the sort faster? -------------- next part -------------- An HTML attachment was scrubbed... URL:

On Sun, Apr 09, 2017 at 11:34:07PM +0530, Vivek Pal wrote: > > Each scheme already has a human-readable name, and Xapian::Registry > > can map that to an "examplar" object of the right type, so we > > could take a string like "bm25 1 0.8", see the first word is "bm25" > > and get a BM25Weight object, then call parse_params("1 0.8") on

Dear R-community, Using bwplot, how can I put the whiskers at percentile 5 and percentile 95, in place of the default position coef=1.5?? Using panel=panel.bwstrip, whiskerpos=0.05, from the package agsemisc gives satisfaction, but changes the appearance of my boxplot and works with an old version of R, what I don’t want, and I didn’t find the option in box.umbrella parameters Many thanks

I'm having trouble translating from C++ to perl objects. The TermIterator class looks like to get a set of terms in a document you might have C++ code like: Enquire::TermIterator termIt =enquire->get_matching_terms_begin(id); for(;termIt != enquire->get_matching_terms_end(id);termIt++) { string term = *termIt; } Or something similar. However when I attempt to translate that

> Each scheme already has a human-readable name, and Xapian::Registry > can map that to an "examplar" object of the right type, so we > could take a string like "bm25 1 0.8", see the first word is "bm25" > and get a BM25Weight object, then call parse_params("1 0.8") on it to > create the correct Weight object (broadly similar to how

Hi, I have callcenter running with v 1.2 with AgentCallbackLogin and now trying to move to 1.4 using the example doc, doc/queues-with-callback-members.txt. From what I understand the basic idea in the example is to 1. Authenticate a caller with VMAuthenticate 2. Get his SIP Channel number 3. Use