ES Upserts for child doc types doesn't set the parent - Bug

Elastic Stack Elasticsearch
1

Hi,

I am using the ES 1.4.2 version and associated Java API. I see bug with ES for the Upsert script.

The Upsert operation is unable to set "_parent" for Child doc types.

Here I use the below Upsert script for inserting/updating the child doc of type "tag". The "tag" mapping has the parent "userinfo" mapping. I use "userId" in "UserInfo" mapping as its "_id". The "tag" type uses the same as "_parent".

    XContentBuilder builder = XContentFactory.jsonBuilder().startObject()
                    .field("eventDate", sdf.format(tagObj.getEventDate()))
                    .field("manufacturer", tagObj.getManufacturer())
                    .field("applicationId", tagObj.getApplicationId())
                    .field("count", tagObj.getEventCount())
                    .field("tag", tagObj.getEventName())
                    .endObject();
            logger.info("About to insert/update index for tag :" + builder.string());
           
            bulkBuilder.add(esClient
                    .prepareUpdate("users", "tag", tagObj.getId())
                    .setScript("ctx._source.eventDate = \""+sdf.format(tagObj.getEventDate())
                                    +"\";ctx._source.count += "+tagObj.getEventCount()
                                    +";ctx._source.country = \""+tagObj.getCountry()+"\"")
                     .setUpsert(builder)
                    .setParent(Long.toString(tagObj.getUserId()))
                    .setRouting(Long.toString(tagObj.getUserId())));

Here this Upsert script inserts the "tag" doc but doesn't set the "_parent" field.

The same was working with the Insert script given below. The "_parent" was getting set in "tag" doc.

    bulkBuilder.add(esClient.prepareIndex("users", "tag", tagObj.getId())
.setSource(builder.string())
.setParent(Long.toString(tagObj.getUserId()))
.setRouting(Long.toString(tagObj.getUserId())));

Why is the Upsert operation having this issue.

Thanks
Suman