Solr – Page 22

Data Import Handler – removing data from index

Rafał Kuć Solr 3 January 201111 November 2020data import handler, databse, dih, integration 0 Comment

Deleting data from an index using DIH incremental indexing, on Solr wiki, is residually treated as something that works similarly to update the records. Similarly, in a previous article, I used this shortcut, the more that I have given an example of indexing wikipedia data that does not need to delete data.

Having at hand a sample data of the albums and performers, I decided to show my way of dealing with such cases. For simplicity and clarity, I assume that after the first import, the data can only decrease.

Data Import Handler – sharding

Marek Rogoziński Solr 27 December 201011 November 2020data import handler, database, dih, import, sharding 0 Comment

Our reader (greetings!) reported us a problem with the cooperation of DIH and sharding mechanism. The Solr project wiki, in my opinion, discuss the solution to this issue, but makes it a little around and on the occasion.

Wildcard queries and how Solr handles them

Rafał Kuć Solr 20 December 201010 November 2020wildcard 0 Comment

One of our readers reported a very interesting problem, which can be summarized to the following question – “Why doesn’t ReversedWildcardFilterFactory doesn’t work with Polish letters ?”. This entry will attempt to answer this question.

Faceting, filters elimination and how to use it ?

Rafał Kuć Solr 6 December 201010 November 2020filter, fq, local, local params, params, solr 0 Comment

During my everyday work, I have seen many repeated queries, to Solr, with only one filter difference. When I asked why – I got anserws that it was necessary to get the faceting results for various filters. If you are using Solr version 1.4 or later, my suggestion is to use local params – what is it and how to use – this post will attempt to answer both questions.

Solr and autocomplete (part 3)

Rafał Kuć Solr 29 November 201010 November 2020autocomplete, component, solr, suggest, suggest component, suggester 0 Comment

In the previous parts (part 1, part. 2) of the cycle, we learned how to configure and query Solr to get the autocomplete functionality. In today’s entry I will show you how to add the dictionary to the Suggester, and thus have an impact on the generated suggestions.

Data Import Handler – How to import data from SQL databases (part 3)

Marek Rogoziński Solr 22 November 201010 November 2020data import handler, dih, import, integration 0 Comment

In previous episodes (part 1 i part 2) we were able to import data from a database in a both wyas full and incremental. Today is the time for a short summary.

Solr and autocomplete (part 2)

Rafał Kuć Solr 15 November 201010 November 2020 0 Comment

In the previous part I showed how the faceting mechanism can be used to achieve the autocomplete functionality. Today I’ll show you how to use a component called Suggester to implement autocomplete functionality.

Hierarchical faceting – Pivot facets in trunk

Rafał Kuć Solr 25 October 201010 November 20204.0, facet, grouping, hierarchical, pivot, solr, trunk 0 Comment

In a large number of implementations which I took part in, sooner or later, the question arise – what can we do to get faceting as a tree structure. Of course there some tricks for that, however, their use was to modify the data and appropriate processing of the results on application side. It was not particularly functional, nor especially comfortable. However, a few days ago Solr version 4.0 has been enhanced with code that is marked as Solr-792 in the system JIRA. Let’s see in this case, how to get the faceting results as a tree.

Solr and autocomplete (part 1)

Rafał Kuć Solr 18 October 201010 November 2020autocomplete, faceting, solr 0 Comment

Almost everyone has seen how the autocomplete feature looks like. No wonder, then, Solr provides mechanisms by which we can build such functionality. In today’s entry I will show you how you can add autocomplete mechanism using faceting.