TermsQueryBuilder NAME query requires a field name – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when a Terms Query is executed without specifying a field name. The Terms Query in Elasticsearch is used to find documents that contain the exact terms specified in a particular field. If the field name is not provided, Elasticsearch doesn’t know where to look for the terms, hence the error. To resolve this, ensure that you provide a valid field name in your Terms Query. Also, check your query syntax to ensure it’s correct and the field you’re querying exists in your index.

This guide will help you check for common problems that cause the log ” [” + TermsQueryBuilder.NAME + “] query requires a field name; ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, query.

Log Context

Log “[” + TermsQueryBuilder.NAME + “] query requires a field name; ” class name is TermsQueryBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 "[" + TermsQueryBuilder.NAME + "] unknown token [" + token + "] after [" + currentFieldName + "]");
 }  if (fieldName == null) {
 throw new ParsingException(parser.getTokenLocation(); "[" + TermsQueryBuilder.NAME + "] query requires a field name; " +
 "followed by array of terms or a document lookup specification");
 }  return new TermsQueryBuilder(fieldName; values; termsLookup)