Andrew, do you got the same problem if UUID is not a primary, but just a regular field?
blind guess mode on: I suppose this bug resides a log ago https://issues.apache.org/jira/browse/SOLR-10653 But I guess it was hidden by old text json writer, until https://issues.apache.org/jira/browse/SOLR-16691 Earlier, I might recommend to bring up the old json response writer (it still resides in our codebase!), but it looks like we can't configure response writers via solrconfig anymore - there are no usages for SolrCore#registerResponseWriter. It seems due to https://issues.apache.org/jira/browse/SOLR-7073 ain't sure why we dropped this configurability (aha - no country for non-SolrCloud!). But perhaps you may use Config API for register old json response writer "solr.JSONResponseWriter" and check whether it can output uuid as a valid json string And I guess to use Config API you need to bring up SolrCloud with Zookeeper embedded. Sorry, too much hassle in this thread. On Fri, Dec 1, 2023 at 10:17 AM Andrew Hankinson <andrew.hankinson@rism.digital> wrote: > No SolrCloud, complete wipe and reindex of the data, select handler. > > > On 1 Dec 2023, at 07:54, Mikhail Khludnev <m...@apache.org> wrote: > > > > It might have the same root cause like > > https://issues.apache.org/jira/browse/SOLR-10653?filter=-3 Could you > share > > more details about your env setup: is it "SolrCloud"? is it /get or > /select > > ? etc. > > > >> On Fri, Dec 1, 2023 at 12:05 AM Andrew Hankinson > >> <andrew.hankinson@rism.digital> wrote: > >> > >> Hi, > >> > >> I have a schema with a UUID field type configured as a unique key. > >> > >> <field name="id" type="uuid" indexed="true" stored="true" > required="true" > >> multiValued="false" /> > >> > >> I recently upgraded my Solr installation to 9.3 (from 7.6) and my > >> application stopped working. It turns out that Solr has stopped encoding > >> UUIDs as strings in the JSON response writer. > >> > >> Whereas before I would get: > >> > >> "id":"76af09e3-db43-4e7e-a46f-9bf03e343db9", > >> > >> Now I get: > >> > >> "id":1b5230fb-a15d-4aea-8720-8e0a1c6e47ae, > >> > >> Of course, UUIDs are not a valid JSON data type, so this looks like a > bug > >> to me? > >> > >> -Andrew > > > > > > > > -- > > Sincerely yours > > Mikhail Khludnev > -- Sincerely yours Mikhail Khludnev
