[jira] [Resolved] (SOLR-9337) Add fetch Streaming Expression

["Joel Bernstein (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-9337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joel Bernstein resolved SOLR-9337.
----------------------------------
       Resolution: Implemented
    Fix Version/s: 6.3

> Add fetch Streaming Expression
> ------------------------------
>
>                 Key: SOLR-9337
>                 URL: https://issues.apache.org/jira/browse/SOLR-9337
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Joel Bernstein
>             Fix For: 6.3
>
>         Attachments: SOLR-9337.patch, SOLR-9337.patch
>
>
> The fetch() Streaming Expression wraps another expression and fetches additional fields for documents in batches. The fetch() expression will stream out the Tuples after the data has been fetched. Fields can be fetched from any SolrCloud collection. 
> Sample syntax:
> {code}
> daemon(
>        update(collectionC, batchSize="100"
>               fetch(collectionB, 
>                     topic(checkpoints, collectionA, q="*:*", fl="a,b,c", rows="50"),
>                     fl="j,m,z",
>                     on="a=j")))
>        
> {code}



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