Nested query does not support currentFieldName – How to solve this OpenSearch exception

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when you’re trying to execute a nested query in OpenSearch and the field you’re querying is not recognized or supported. This could be due to a typo in the field name, or the field might not exist in the nested object. To resolve this issue, you can verify the field name in your query and ensure it matches exactly with the field name in your nested object. If the field doesn’t exist, you may need to add it to your nested object or adjust your query to target an existing field.

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This guide will help you check for common problems that cause the log ” [nested] query does not support [” + currentFieldName + “] ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: index, query.

Log Context

Log “[nested] query does not support [” + currentFieldName + “]” class name is We extracted the following from OpenSearch source code for those seeking an in-depth context :

 if (QUERY_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 query = parseInnerQueryBuilder(parser);
 } else if (INNER_HITS_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 innerHitBuilder = InnerHitBuilder.fromXContent(parser);
 } else {
 throw new ParsingException(parser.getTokenLocation(); "[nested] query does not support [" + currentFieldName + "]");
 } else if (token.isValue()) {
 if (PATH_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 path = parser.text();
 } else if (AbstractQueryBuilder.BOOST_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {


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