Ishan Chattopadhyaya created SOLR-5979:
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Summary: Update of fields using JavaScript expressions
Key: SOLR-5979
URL: https://issues.apache.org/jira/browse/SOLR-5979
Project: Solr
Issue Type: New Feature
Components: update
Reporter: Ishan Chattopadhyaya
The idea is to have the user be able to supply JavaScript expressions that bind
the old value for a field that needs to be updated (regular atomic update as
well as docvalue update).
Discussion here:
https://issues.apache.org/jira/browse/SOLR-5944?focusedCommentId=13963663&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13963663
(One example where it has been personally useful to me was an update to numeric
values in documents where I had to introduce a logarithmic decay of the boost
values based on the age of the documents.)
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