On 3/9/2017 4:20 AM, danny teichthal wrote: > I have an "id" field that is defined on schema.xml with type long. > For some use cases the id that is indexed exceeds Max long limitation. > I thought about solving it by changing the id to type string. > > For my surprise, by only changing the definition on schema.xml and > restarting Solr, I was able to read documents and update without the need > to re-index.
In general, changing the class used for a field won't work without a reindex. You'll probably find that queries don't work to find the old documents, even if Solr is able to correctly show the field in results. I am very surprised that *anything* works with that change and an existing index. If "id" is your uniqueKey and you are relying on Solr's ability to replace existing documents using that field, you'll likely discover that reindexing existing documents will result in duplicates instead of deleting the old one. Thanks, Shawn