similar to: Xapian-discuss Digest, Vol 88, Issue 9

Hey everyone, I am brand new to Xapian so forgive me if I am just being noob. I looked over the sparse documentation for the Xapian library and its PHP hooks and I am really confused how to complete my index. I understand how to add documents etc etc etc and how to build queries but how I do specify in add_value what field type xapian should take (i.e. tokenized, unindexed, indexed)? Is there

Dear, guys: I am a beginner of Xapian, when reading the documents, I encountered follow questions. (1) I see the Xapian::Document has a method void add_value (Xapian::valueno valueno, const std::string &value) What's the purpose of this method? Document will related to the terms, but what's the purpose of this? (2) add_posting method will add term to a documents. void

I attempted to use the sortable_serialize function from perl, however doesn't seem to exist. The only occurrence of the string "sortable" in the /usr/local/perl/5.10.1/Search/ tree is in the pod in Xapian.pm. What am I doing wrong? use Search::Xapian; ... $doc->add_value(4,sortable_serialize($recdate)); Undefined subroutine &main::sortable_serialize called

Hi all, I am creating Xapian documents and adding a unix timestamp to each document as a value using the doc.add_value method. When I search my Xapian database, I want the option to only search documents with a timestamp within the last year. Is there a way to search across documents with a value greater than a specified value string? Or is there a better way of doing something like this? Any

Hello, I came across the file *omega.cc* which is in directory* xapain-application/omega/* In this file , atoi is used in *Percentage Relevance cutoff *(293 line no) as Percentage lies between 0-100 their is no need to modify atoi . But do we need to check for error's ? Second Implementation is in *collapsing* (301) in which we collapse set of document under a key,range of this key has not

On Thu, Dec 18, 2014 at 11:38:42PM +0000, James Aylett wrote: > Collapsing is done using a valueno (you can tell because collapse_key > is of type Xapian::valueno), which is a 32 bit unsigned integer (see > here: > https://getting-started-with-xapian.readthedocs.org/en/latest/concepts/indexing/values.html). > For 32 bit unsigned you need unsigned long. Xapian::valueno is actually a

what is the fastest way to fetch results which are sorted by timestamp ? i want to use xapian as my search engine , use add_boolean_term(something) and add_value(0,sortable_serialise(get_timestamp())) to a doc. search through enquire.set_weighting_scheme(xapian.BoolWeight()) and enquire.set_sort_by_value(0,True) to ensure that the results are sorted by the timestamp. This method is ok , but

On Sun, Jan 18, 2015 at 04:25:29PM +0000, James Aylett wrote: > That?s exactly how it?s supposed to work. ?Eventually? (once the > writer gets sufficiently far ahead of the reader), the reader will get > a DatabaseModifiedError and will have to re-open the database, but > until then it?s up to it when it does so. You may wish to do it every > N requests, or every K seconds, or only

Currently I have the following indexscript: pid : unique=Q boolean=Q field=pid postdate : field=startdate author_name: unhtml boolean=XAUTHORNAME field=author author_id: boolean=XAUTHORID field=authorid url : field=url sample : weight=1 index field=sample How can I create the same indexing using PHP? With this, I can get an searchable index, but I have no idea how to set the fields, so that I

hi all, i want use sort_by_value to sort by "username". so in the indexing process i add the value i want sort by as value (lang is php) $document->add_value(0, 'value'); when i sort i got all specialchars at the beginning ? ? ? alf the values be indexed as utf8. what do i wrong? any suggestions? regards, sven

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

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

On Wed, Dec 13, 2006 at 06:09:49PM +0000, richard wrote: > Improve documentation comment for Document::get_value(). Further to this improvement, I wonder if the "must be >= 0" should be dropped. Xapian::valueno is an unsigned type, so you effectively can't pass a negative value in (if you do it'll be converted to a large positive value and would work if used

I've some problems converting a xapian db, created with core 1.1.3 (using chert), to the new chert format. I'm using xapian-chert-update, compiled from the core-1.2.4. The conversion seems to run without errors: #./xapian-core-1.2.4/bin/xapian-chert-update old new postlist: Reduced by 33.3333% 16K (48K -> 32K) record: Size unchanged (8K) termlist: doesn't exist position: Size

Hi guys, I resently used xapian to sort some documents by distance between 2 points. I implemented a MatchDecider which work well. I now tried to implement a Weight scheme to put my document in ascending order depending on the distance... My information to calcul distance is in values in the document. How I can access document values from Weight to be able to add some sum_extra weight ??

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:

(Forwarded off-list message) -------- Original Message -------- Subject: Re: [Xapian-discuss] what is the fastest way to fetch results which are sorted by timestamp ? Date: Thu, 11 Aug 2011 01:06:36 +0800 From: ??? <panjunyong at gmail.com> To: Tim Brody <tdb2 at ecs.soton.ac.uk> On Wed, Aug 10, 2011 at 6:39 PM, Tim Brody <tdb2 at ecs.soton.ac.uk> wrote: > Hi, > > In

Hi All, I need to update or delete some documents from a Xapian database. and I haven't been able to find anything in the API , Is there a way to do it ? What would be the easiest way to do it ? Thanks.

Folks, Is it possible to query a document value (doc.set_value(i, val)) as part of the Omega query. I know how to do it from code. Is there a query markup to use for Omega? ...Thanks, ...Ken

I have a search in perl that looks a bit like: my $qp = new Search::Xapian::QueryParser(); $qp->set_stemmer(new Search::Xapian::Stem("english")); $qp->set_stemming_strategy(STEM_SOME); $qp->set_default_op($defaultop); ... my $par = $qp->parse_query($query); my $enq = $xDatabase->enquire( $par ); and in the db create script: my $stopper =