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Posted to dev@lucene.apache.org by "Joel Bernstein (JIRA)" <ji...@apache.org> on 2018/06/13 10:42:00 UTC
[jira] [Resolved] (SOLR-12159) Add memset Stream Evaluator
[ https://issues.apache.org/jira/browse/SOLR-12159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joel Bernstein resolved SOLR-12159.
-----------------------------------
Resolution: Resolved
> Add memset Stream Evaluator
> ---------------------------
>
> Key: SOLR-12159
> URL: https://issues.apache.org/jira/browse/SOLR-12159
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Fix For: 7.4
>
> Attachments: SOLR-12159.patch, SOLR-12159.patch, SOLR-12159.patch
>
>
> The *memset* function copies multiple numeric arrays into memory from fields in an underlying TupleStream. This will be much more memory efficient then calling the *col* function multiple times on an in-memory list of Tuples. Sample syntax:
> {code:java}
> let(a=memset(random(collection1, q="*:*", fl="field1, field2", rows=10000),
> cols="field1, field2",
> vars="c, d",
> size=10000),
> e=corr(c, d))
> {code}
>
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