SOLR MoreLikeThis with date field returns Invalid Date String

Question

Tested with SOLR 6.6.6 and now with SOLR 7.7.3 we get the following error:

  "error":{
"metadata":[
  "error-class","org.apache.solr.common.SolrException",
  "root-error-class","org.apache.solr.common.SolrException"],
"msg":"Invalid Date String:'1604016000000'",
"code":400}}

The field type is this:

<fieldType name="date" class="solr.DatePointField" sortMissingLast="true" omitNorms="true"/>

and the field:

<field name="publicationDate" type="date" indexed="true" stored="true" termVectors="true" termPositions="true" termOffsets="true"/>

The search itself is: http://localhost:8091/solr/en/select?fl=id,uuid,referenceNumber,title,publicationDate&mlt=true&mlt.fl=referenceNumber,title,publicationDate&q=id:1282

The dates are correct in our index - we have checked them many times.

Does anyone have an idea what we are doing wrong?

Answer 1

MoreLikeThis component doesn't work with dates

This is an open issue since April 2015.

Please see here: https://issues.apache.org/jira/projects/SOLR/issues/SOLR-7351?filter=allopenissues