Nicholas Waltham created NUTCH-1611:
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Summary: 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
Environment: All
Reporter: Nicholas Waltham
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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