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
