This doesn't sound like the right behaviour. You should not need _root_ field if you're not using nested documents. Can someone please confirm?
On Sat, Jun 11, 2022 at 12:29 PM 戴晓彬 <xiaobin_...@foxmail.com> wrote: > There is no _root_ field in the index data before the upgrade. The 8.x > version will judge whether it is the same record according to _root_, so > the update will become two after the upgrade. > It is recommended to reindex after the upgrade. > > > 2022年6月12日 00:10，YangLiu <sll...@126.com> 写道： > > > > > > > > > > Thank you for your reply. > > The _root_ field is defined as follows: > > > > > > > > > > > <fieldname="_root_"type="StrField"docValues="false"indexed="true"stored="false"/> > > > <fieldTypename="StrField"class="solr.StrField"sortMissingLast="true"docValues="true"/> > > > > > > > > > > > > At 2022-06-12 00:05:00, "戴晓彬" <xiaobin_...@foxmail.com> wrote: > >> check the managed-schema to see if the _root_ field is defined. > >> > >>> 2022年6月11日 23:58，slly <sll...@126.com> 写道： > >>> > >>> Hello everyone. > >>> We recently upgraded the online version from Solr 7 to 8.11, we found > a very strange problem. > >>> > >>> > >>> Before upgrade, we wrote a row of data, the id is uniqueKey. > >>> id=1, name=alice, age=10 > >>> After upgrade, we write three rows of data and id=2 is repeated. > >>> id=1, name=alice2, age=11 > >>> id=2, name=nick, age=30 > >>> id=2, name=nick2, age=31 > >>> > >>> > >>> We found NumFound=2 when querying with debugQuery=true&q=id:1, and > NumFound=1 when querying with debugQuery=true&q=id:3 > >>> > >>> > >>> For historical data, the default 'overwrite' is false? > >>> > >>> > >>> > >>> > >>> Thanks. > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >
