Hi, Since the stream graph query for my use case , didn't work as i took the data from solr source code test and also copied the schema and solrconfig.xml from solr 7.6 source code. Had to substitute few variables.
Posted below data curl -X POST http://localhost:8983/solr/knr/update -H 'Content-type:text/csv' -d ' id, basket_s, product_s, prics_f 90,basket1,product1,20 91,basket1,product3,30 92,basket1,product5,1 93,basket2,product1,2 94,basket2,product6,5 95,basket2,product7,10 96,basket3,product4,20 97,basket3,product3,10 98,basket3,product1,10 99,basket4,product4,40 110,basket4,product3,10 111,basket4,product1,10' After this I committed and made sure the data got published. to solr curl --data-urlencode 'expr=gatherNodes(knr,walk="product1->product_s",gather="basket_s")' http://localhost:8983/solr/knr/stream { "result-set":{ "docs":[{ "EOF":true, "RESPONSE_TIME":4}]}} and if I add *scatter="branches, leaves" , there is one doc.* curl --data-urlencode 'expr=gatherNodes(knr,walk="product1->product_s",gather="basket_s",scatter="branches, leaves")' http://localhost:8983/solr/knr/stream { "result-set":{ "docs":[{ "node":"product1", "collection":"knr", "field":"node", "level":0} ,{ "EOF":true, "RESPONSE_TIME":4}]}} Below is the data I got from https://github.com/apache/lucene-solr/blob/branch_7_6/solr/solrj/src/test/org/apache/solr/client/solrj/io/graph/GraphExpressionTest.java#L271 According to this test 4 docs are expected. I am not sure what I am missing. Any pointers, please Thanks you, Rajeswari
