The easiest way is to do that with Update Request Processors: https://lucene.apache.org/solr/guide/7_7/update-request-processors.html
Usually, you would clone a field and then do your transformations. For your specific example, you could use: *) FieldLengthUpdateProcessorFactory - int rather than boolean *) StatelessScriptUpdateProcessorFactory - if you want to have full freedom (but a bit slower indexing) *) RegexReplaceProcessorFactory - maybe a bit trickier but also interesting. You may also find this (mine) resource list interesting: http://www.solr-start.com/info/update-request-processors/ (it is a bit out of date). Regards, Alex. On Fri, Jun 21, 2019, 2:19 PM Muaawia Bin Arshad, <amuaa...@abebooks.com> wrote: > Hi Everyone, > > I am fairly new to solr and I was wondering if there is a way in solr 7.7 > to populate fields based on some pre-processing on other field. So let’s > say I have a field called fieldX defined in the schema, I want to define > another field called isFieldXgood which is just a Boolean field that shows > whether the length of fieldX is larger than 10. > > > Thanks, > Muaawia Bin Arshad >
