Kojo, Not sure what do you mean by making two request to get documents. A "search" streaming expression can be passed with "fq" parameter to filter the results and rollup on top of that will fetch you desired results. This maybe not mentioned in official docs:
Sample streaming expression: expr=rollup( > > search(collection1, > > zkHost="localhost:9983", > > qt="/export", > > q="*:*", > > fq=a_s:filter_a > > fl="id,a_s,a_i,a_f", > > sort="a_f asc"), > > over=a_f) > > Amrit Sarkar Search Engineer Lucidworks, Inc. 415-589-9269 www.lucidworks.com Twitter http://twitter.com/lucidworks LinkedIn: https://www.linkedin.com/in/sarkaramrit2 Medium: https://medium.com/@sarkaramrit2 On Wed, Nov 8, 2017 at 7:41 AM, Kojo <rbsnk...@gmail.com> wrote: > Hi, > I am working on PoC of a front-end web to provide an interface to the end > user search and filter data on Solr indexes. > > I am trying Streaming Expression for about a week and I am fairly keen > about using it to search and filter indexes on Solr side. But I am not sure > whether this is the right approach or not. > > A simple question to illustrate my doubts: If use the search and some > Streaming Expressions more to get and filter the indexes to get documents, > and I want to rollup the result, will I have to make two requests? Is this > a good use for Streaming Expressions? >
