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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-1093) A RequestHandler to run multiple queries in a batch
Date Fri, 27 May 2011 17:37:47 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13040349#comment-13040349
] 

Simon Willnauer commented on SOLR-1093:
---------------------------------------

We got lots of votes on this issue, seems like we should take some action here! I will assign
it and make sure it will be resolved rather sooner than later.

bq. Please add this feauture

to get expectations right, we are working on releasing 3.2 soon and this one should not block
it. I will work towards 3.3 here

> A RequestHandler to run multiple queries in a batch
> ---------------------------------------------------
>
>                 Key: SOLR-1093
>                 URL: https://issues.apache.org/jira/browse/SOLR-1093
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>            Reporter: Noble Paul
>             Fix For: 3.2
>
>
> It is a common requirement that a single page requires to fire multiple queries .In cases
where these queries are independent of each other. If there is a handler which can take in
multiple queries , run them in paralll and send the response as one big chunk it would be
useful
> Let us say the handler is  MultiRequestHandler
> {code}
> <requestHandler name="/multi" class="solr.MultiRequestHandler"/>
> {code}
> h2.Query Syntax
> The request must specify the no:of queries as count=n
> Each request parameter must be prefixed with a number which denotes the query index.optionally
,it may can also specify the handler name.
> example
> {code}
> /multi?count=2&1.handler=/select&1.q=a:b&2.handler=/select&2.q=a:c
> {code}
> default handler can be '/select' so the equivalent can be
> {code} 
> /multi?count=2&1.q=a:b&2.q=a:c
> {code}
> h2.The response
> The response will be a List<NamedList> where each NamedList will be a response
to a query. 

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