[jira] [Created] (OAK-2531) Suggest field doesn't get stored if it has only one value

["Tommaso Teofili (JIRA)" <ji...@apache.org>]

Tommaso Teofili created OAK-2531:
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             Summary: Suggest field doesn't get stored if it has only one value
                 Key: OAK-2531
                 URL: https://issues.apache.org/jira/browse/OAK-2531
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: oak-lucene
    Affects Versions: 1.1.6
            Reporter: Tommaso Teofili
            Assignee: Tommaso Teofili
             Fix For: 1.1.7


Because of LUCENE-5833 we have to do merge the _:suggest_ field values in one single valued field, however in case there's only one value (e.g. a Lucene property index on _jcr:primaryType_) the value is not stored as it {{LuceneIndexEditor}} uses the previously set field {{newPropertyField(FieldNames.SUGGEST, value, true, false)}} instead of {{FieldFactory.newSuggestField(f.stringValue())}} causing the building of the suggester dictionary to fail with:
{noformat}
org.apache.jackrabbit.oak.plugins.index.lucene.util.SuggestHelper could not update the suggester
java.lang.IllegalArgumentException: need at least one suggestion
    at org.apache.lucene.search.suggest.analyzing.FreeTextSuggester.build(FreeTextSuggester.java:338)
    at org.apache.lucene.search.suggest.analyzing.FreeTextSuggester.build(FreeTextSuggester.java:278)
    at org.apache.lucene.search.suggest.Lookup.build(Lookup.java:165)
    at org.apache.jackrabbit.oak.plugins.index.lucene.util.SuggestHelper.updateSuggester(SuggestHelper.java:64)
    at org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexEditorContext.updateSuggester(LuceneIndexEditorContext.java:188)
{noformat}



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