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Apache Solr Beginner's Guide by Alfredo Serafini

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Time for action – expanding the original data with coordinates during the update process

Defining an external and specific dedicated index is not unusual in a real context, when sometimes you would like to index and search for specific kind of entities. Thus, you will be able to recognize them and annotate them in your own data in a way similar to what we already did for highlighting, but in a more controlled way and with more semantics. A good experiment at this time, involving just a bit of scripting, could be expanding the information we have about our city at the time of posting them to be indexed.

  1. Suppose we have already collected information about cities, and we want to use it to expand the information about every new document when it contains ...

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