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https://issues.apache.org/jira/browse/SOLR-16287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17572382#comment-17572382
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Dan Rosher commented on SOLR-16287:
-----------------------------------
It started out as a means to do atomic updates with update stream, but it could
be used for more generic things, for example:
{code:java}
map(map(tuple(a="123",c="345"),"a=inner"),"a=outer"){code}
becomes:
{code:java}
{
"a": {
"outer": {
"inner": "123"
}
},
"c": "345"
}{code}
To cover both cases, would map be a suitable name to continue using?
> MapStream - remap tuple value(s)
> ---------------------------------
>
> Key: SOLR-16287
> URL: https://issues.apache.org/jira/browse/SOLR-16287
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: streaming expressions
> Affects Versions: 9.0
> Reporter: Dan Rosher
> Priority: Minor
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Remap from (k,v) => k -> newKey -> value
> e.g. with
> map(<stream>,"cand_id=add-distinct") , convert stream tuples from
> From
> {code:java}
> {"cand_id":5718,id:123,v_i:345}{code}
> To
> {code:java}
> {
> id:123,
> v_i:345,
> "cand_id": {
> "add-distinct": 5718
> }, {code}
> Useful for update stream for atomic updates.
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