Has_child query does not support ” + currentFieldName + ” – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” has_child query does not support ” + currentFieldName + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: join and query.

Log Context

Log “[has_child] query does not support [” + currentFieldName + “]”classname  is HasChildQueryBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (QUERY_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 iqb = parseInnerQueryBuilder(parser);
 } else if (INNER_HITS_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 innerHitBuilder = InnerHitBuilder.fromXContent(parser);
 } else {
 throw new ParsingException(parser.getTokenLocation(); "[has_child] query does not support [" + currentFieldName + "]");
 }
 } else if (token.isValue()) {
 if (TYPE_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 childType = parser.text();
 } else if (SCORE_MODE_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {

 

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