If the document routing can be arranged such that the children and the parent are always co-located in the same shard, and share an identifier, the graph query can pull back the parent plus any arbitrary number of "children" that have been added at any time in any order. In this scheme "children" are just things that match your graph query... ( https://lucene.apache.org/solr/guide/6_6/other-parsers.html#OtherParsers-GraphQueryParser) However, if your query has to cross shards, that won't work (yet... https://issues.apache.org/jira/browse/SOLR-11384).
More info here: https://www.slideshare.net/lucidworks/solr-graph-query-presented-by-kevin-watters-kmw-technology On Mon, Jan 15, 2018 at 2:09 PM, S G <sg.online.em...@gmail.com> wrote: > Hi, > > We have a use-case where a single document can contain thousands of child > documents. > However, I could not find any way to do it incrementally. > Only way is to read the full document from Solr, add the new child document > to it and then re-index the full document will all of its child documents > again. > This causes lot of reads from Solr just to form the document with one extra > document. > Ideally, I would have liked to only send the parent-ID and the > child-document only as part of an "incremental update" command to Solr. > > Is there a way to incrementally add a child document to a parent document? > > Thanks > SG > -- http://www.the111shift.com
