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https://issues.apache.org/jira/browse/NUTCH-1611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17556821#comment-17556821
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Sebastian Nagel commented on NUTCH-1611:
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Need to clarify whether this should be fixed for 1.x
> Elastic Search Indexer Creates field in elastic search "boost" as a string
> value, so cannot be used in custom boost queries
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: NUTCH-1611
> URL: https://issues.apache.org/jira/browse/NUTCH-1611
> Project: Nutch
> Issue Type: Bug
> Components: indexer
> Affects Versions: 2.2.1, 1.16
> Environment: All
> Reporter: Nicholas Waltham
> Priority: Major
> Attachments: NUTCH-1611-1.x.patch
>
>
> Ordinarily, one can use a boost field in a custom_score query in elastic
> search to affect the ranking, nutch create such a field. However it is store
> in elastic search as a string, so cannot be used. Attempt to use the boost
> field in a query therefore creates the following error:
> PropertyAccessException[[Error: could not access: floatValue; in class:
> org.elasticsearch.index.field.data.strings.StringDocFieldData]\n[Near : {...
> _score + (1 * doc.boost.floatValue / 100) ....}]
> example test query:
> {
> "query" : {
> "custom_score" : {
> "query" : {
> "query_string" : {
> "query" : "something"
> }},
> "script" : "_score + (1 * doc.boost.doubleValue / 100)"
> }
> }
> }
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