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https://issues.apache.org/jira/browse/SOLR-5979?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ishan Chattopadhyaya updated SOLR-5979:
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Description:
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).
Proposing a "expr" update operator, which takes in the script as the value, for
this feature (alongside the already existing "add", "set", "inc").
Some context 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 could've 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. As it turned out, I had to
maintain the old values outside the system, i.e. in HDFS.. yuck!)
was:
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.)
> 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).
> Proposing a "expr" update operator, which takes in the script as the value,
> for this feature (alongside the already existing "add", "set", "inc").
> Some context 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 could've 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. As it turned out, I had
> to maintain the old values outside the system, i.e. in HDFS.. yuck!)
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