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From Amrit Sarkar <sarkaramr...@gmail.com>
Subject Re: Streaming Expression usage
Date Wed, 08 Nov 2017 04:35:54 GMT
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 <rbsnkjmr@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?
>

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