Phrase prefix query – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.3-8.9

Briefly, this error occurs when a phrase prefix query is executed in Elasticsearch, but the syntax is incorrect or the fields specified in the query do not exist. This type of query is used to match phrases in a document. To resolve this issue, ensure that the query syntax is correct and the fields specified in the query exist in the document. Also, check if the field is analyzed or not, as phrase prefix queries work best on analyzed fields. Lastly, ensure that the Elasticsearch version supports the phrase prefix query.

This guide will help you check for common problems that cause the log ” phrase prefix query ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: query, index.

Log Context

Log “phrase prefix query” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw new QueryShardException(context; fail("multi-phrase query"));
 }  @Override
 public Query phrasePrefixQuery(TokenStream stream; int slop; int maxExpansions; SearchExecutionContext context) throws IOException {
 throw new QueryShardException(context; fail("phrase prefix query"));
 }  @Override
 public SpanQuery spanPrefixQuery(String value; SpanMultiTermQueryWrapper.SpanRewriteMethod method; SearchExecutionContext context) {
 throw new QueryShardException(context; fail("span prefix query"));


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