Briefly, this error occurs when an unsupported field is used in a [has_parent] query in Elasticsearch. The [has_parent] query only supports specific fields, and using an unsupported field will trigger this error. To resolve this issue, you should review the Elasticsearch documentation to understand which fields are supported by the [has_parent] query. Then, modify your query to only use these supported fields. Additionally, ensure that your data structure and mapping are correctly defined to avoid such issues.
This guide will help you check for common problems that cause the log ” [has_parent] 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, query.
Log Context
Log “[has_parent] query does not support [” + currentFieldName + “]” class name is HasParentQueryBuilder.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())) {
innerHits = InnerHitBuilder.fromXContent(parser);
} else {
throw new ParsingException(parser.getTokenLocation(); "[has_parent] query does not support [" + currentFieldName + "]");
}
} else if (token.isValue()) {
if (PARENT_TYPE_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
parentType = parser.text();
} else if (SCORE_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
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