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https://issues.apache.org/jira/browse/NIFI-4989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16406540#comment-16406540
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ASF GitHub Bot commented on NIFI-4989:
--------------------------------------

Github user zenfenan commented on a diff in the pull request:

    https://github.com/apache/nifi/pull/2560#discussion_r175820396
  
    --- Diff: 
nifi-nar-bundles/nifi-mongodb-bundle/nifi-mongodb-processors/src/main/java/org/apache/nifi/processors/mongodb/PutMongo.java
 ---
    @@ -196,6 +237,33 @@ public void onTrigger(final ProcessContext context, 
final ProcessSession session
             }
         }
     
    +    private void removeUpdateKeys(String updateKeyParam, Map doc) {
    +        String[] parts = updateKeyParam.split(",[\\s]*");
    +        for (String part : parts) {
    +            if (part.contains(".")) {
    --- End diff --
    
    No.. what I meant was, regardless of whether we have a complex key or 
simple key, we don't need them to exist in the parsed filter query, right? So 
why don't we simply remove this `if (part.contains("."))` check, basically 
meaning, remove the key from the `doc`. No?


> PutMongo cannot specify nested fields or multiple lookup keys
> -------------------------------------------------------------
>
>                 Key: NIFI-4989
>                 URL: https://issues.apache.org/jira/browse/NIFI-4989
>             Project: Apache NiFi
>          Issue Type: Improvement
>            Reporter: Mike Thomsen
>            Assignee: Mike Thomsen
>            Priority: Major
>
> From the user mailing list:
> {quote}{color:#222222}I am using PutMongo processor to update documents in a 
> mongoDB collection.{color}
> {color:#222222}I would like to specify nested field and multiple key in the 
> update Key.{color}
> {color:#222222}For exemple :{color}
> {color:#222222}- my mongodb documents are {"nom":"HAMEL", 
> "prenom":"Yves",{color}
> {color:#222222}"ids":\{"idSoc":"1234", "idInterne":"788"}}{color}
> {color:#222222}- I would'd like to set update query key to something like 
> {"ids.idSoc" ,{color}
> {color:#222222}"nom"}{color}
> {color:#222222}- this would means that I update document with ids.idSoc and 
> nom equals to{color}
> {color:#222222}my mew document.{color}
> {quote}



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