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https://issues.apache.org/jira/browse/SOLR-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14087770#comment-14087770
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Noble Paul commented on SOLR-6304:
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bq.We should try to standardize this across CSV and XML formats too
We already have avery powerful XPathRecordReader in the DIH. I'm planning to
move that into the common util and make this syntax valid for xml as well. But
for csv , we already have a very powerful processing syntax . I'm not sure if
we should change that
> Add a way to flatten an input JSON to multiple docs
> ---------------------------------------------------
>
> Key: SOLR-6304
> URL: https://issues.apache.org/jira/browse/SOLR-6304
> Project: Solr
> Issue Type: Improvement
> Reporter: Noble Paul
> Assignee: Noble Paul
>
> example
> {noformat}
> curl
> localhost:8983/update/json/docs?split=/batters/batter&f=recipeId:/id&f=recipeType:/type&f=id:/batters/batter/id&f=type:/batters/batter/type
> -d '
> {
> "id": "0001",
> "type": "donut",
> "name": "Cake",
> "ppu": 0.55,
> "batters": {
> "batter":
> [
> { "id": "1001", "type":
> "Regular" },
> { "id": "1002", "type":
> "Chocolate" },
> { "id": "1003", "type":
> "Blueberry" },
> { "id": "1004", "type":
> "Devil's Food" }
> ]
> }
> }'
> {noformat}
> should produce the following output docs
> {noformat}
> { "recipeId":"001", "recipeType":"donut", "id":"1001", "type":"Regular" }
> { "recipeId":"001", "recipeType":"donut", "id":"1002", "type":"Chocolate" }
> { "recipeId":"001", "recipeType":"donut", "id":"1003", "type":"Blueberry" }
> { "recipeId":"001", "recipeType":"donut", "id":"1004", "type":"Devil's food" }
> {noformat}
> the split param is the element in the tree where it should be split into
> multiple docs. The 'f' are field name mappings
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