Currently, Doc transformers are not supported while exporting the results. The document covers the field requirements for the export handler. I hope this helps. https://lucene.apache.org/solr/guide/8_5/exporting-result-sets.html#field-requirements
Regards, Munendra S N On Wed, Jun 17, 2020 at 8:49 PM Ludger Steens <ludger.ste...@qaware.de> wrote: > Dear Community, > > > > > > we are using the /export handler with Solr 7.7 to fetch a large number of > documents from Solr. > > Recently we have extended our schema with Child Documents and now we are > wondering if/how it is possible to export parent documents together with > their corresponding Child Documents. > > When using the /select handler this can be done with the > ChildDocTransformer ( > > https://lucene.apache.org/solr/guide/7_7/transforming-result-documents.html#child-childdoctransformerfactory > ). > > However, when using the export handle we get an error from Solr. > > > > Our request: > > { > "query" : "*:*", > "sort" : "id asc", > "fields" : "id,[child parentFilter='-child_type:* *:*']" > } > > > > The response from Solr: > > { > > "responseHeader":{"status":400}, > > "response":{ > > "numFound":0, > > "docs":[{"EXCEPTION":"org.apache.solr.common.SolrException: > undefined field: \"[child parentFilter=\"-child_type:* *:*\"]\""}]} > > } > > > > Is it possible to get parent documents together with their corresponding > child documents? > > If it is possible: What is the correct query? > > If it is not possible: Can Streaming Expressions be used together with > child documents? As far as I understand they internally use the export > handler. > > > > Thanks in advance for your help > > > > Ludger > > > ------------------------------ > > *„Beste Arbeitgeber ITK 2020“ - 1. Platz für QAware* > ausgezeichnet von Great Place to Work > < > https://www.qaware.de/news/great-place-to-work-deutschlands-beste-arbeitgeber-2020/ > > > ------------------------------ > > Ludger Steens > Softwarearchitekt > > QAware GmbH > Aschauer Straße 32 > 81549 München, Germany > Mobil +49 175 7973969 > ludger.ste...@qaware.de > www.qaware.de > ------------------------------ > > Geschäftsführer: Christian Kamm, Johannes Weigend, Dr. Josef Adersberger > Registergericht: München > Handelsregisternummer: HRB 163761 >
