If you’re reindexing anyway, I recommend you index to a new collection then use “collection aliasing” to point to the new one, that’s cleanest.
There’s no way to rename fields. Further, the meta-data will be carried in the index forever even if all docs have been reindexed into an existing collection. It’s a long story. For just a few fields this is totally transparent and not a problem, just FYI. And from there, Alexandre’s comments will allow you to keep the application the same. Best, Erick > On Sep 16, 2019, at 9:56 AM, Alexandre Rafalovitch <arafa...@gmail.com> wrote: > > I don't think you can rename it in the index. > > However, you may be able to rename it during the query: > https://lucene.apache.org/solr/guide/6_6/common-query-parameters.html#CommonQueryParameters-FieldNameAliases > > Or, if you use eDisMax, during query rewriting: > https://lucene.apache.org/solr/guide/6_6/the-extended-dismax-query-parser.html > , see example at: > https://github.com/arafalov/solr-indexing-book/blob/master/published/languages/conf/solrconfig.xml#L20-L21 > > These two may need to play together actually, if you want it to be fully > transparent to the client code. See the #37 of the example above. > > Regards, > Alex. > > > On Mon, 16 Sep 2019 at 03:54, Sebastian Riemer <s.rie...@littera.eu> wrote: > >> Dear mailing list, >> >> >> >> I would like to know: >> >> >> >> Is there some simple way to rename a field in all documents in my solr >> index? >> >> >> >> I am using a dynamic schema definition, and I’ve introduced some new >> copyField-instructions. Those make it necessary to reindex all documents. >> It would help me a great deal to be able to rename a specific field from: >> >> >> >> `i_itemNumber_l` to `i_itemNumber_cp_l` >> >> >> >> I don’t really mind to reindex all documents too, but that takes some time >> and having my (old) documents return NULL as value for the field >> `i_itemNumber_cp_l` is breaking a lot of stuff. >> >> >> >> So if there _*IS*_ a way to rename that field, that would help >> tremendously. Btw. I am using Solr 6.5.1 and I use SolrJ in my >> ApplicationLayer. >> >> >> >> Best regards and as always, >> >> >> >> Thank you so much for any input! >> >> >> >> >> >> Yours, >> >> Sebastian >> >> >> >> Mit freundlichen Grüßen >> >> Sebastian Riemer, BSc >> >> >> >> >> >> [image: logo_Littera_SC] <http://www.littera.eu/> >> LITTERA Software & Consulting GmbH >> >> A-6060 Hall i.T., Haller Au 19a >> >> Telefon: +43(0) 50 765 000, Fax: +43(0) 50 765 118 >> >> Sitz: Hall i.T., eingetragen beim Handelsgericht Innsbruck, >> Firmenbuch-Nr. FN 295807k, geschäftsführender Gesellschafter: Albert >> Unterkircher >> >> >> >> D-80637 München, Landshuter Allee 8-10 >> Telefon: +49(0) 89 919 29 122, Fax: +49(0) 89 919 29 123 >> >> Sitz: München, eingetragen beim Amtsgericht München >> unter HRB 103698, Geschäftsführer: Albert Unterkircher >> >> E-Mail: off...@littera.eu >> Homepage: www.littera.eu >> >> >> >> Diese Nachricht kann vertrauliche, nicht für die Veröffentlichung >> bestimmte und/oder rechtlich geschützte Informationen enthalten. Falls Sie >> nicht der beabsichtigte Empfänger sind, beachten Sie bitte, dass jegliche >> Veröffentlichung, Verbreitung oder Vervielfältigung dieser Nachricht >> strengstens untersagt ist. Sollten Sie diese Nachricht irrtümlich erhalten >> haben, informieren Sie bitte sofort den Absender durch Anruf oder >> Rücksendung der Nachricht und vernichten Sie diese. >> >> This communication may contain information that is legally privileged, >> confidential or exempt from disclosure. If you are not the intended >> recipient, please note that any dissemination, distribution, or copying of >> this communication is strictly prohibited. Anyone who receives this >> message in error should notify the sender immediately by telephone or by >> return e-mail and delete this communication entirely from his or her >> computer.
