Can only use prefix queries on keyword; text and wildcard fields – not on – 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 Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Can only use prefix queries on keyword; text and wildcard fields – not on ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “Can only use prefix queries on keyword; text and wildcard fields – not on [“classname  is MappedFieldType.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

throw new IllegalArgumentException("Can only use fuzzy queries on keyword and text fields - not on [" + name
 + "] which is of type [" + typeName() + "]");
 } 
 public Query prefixQuery(String value; @Nullable MultiTermQuery.RewriteMethod method; QueryShardContext context) {
 throw new QueryShardException(context; "Can only use prefix queries on keyword; text and wildcard fields - not on [" + name
 + "] which is of type [" + typeName() + "]");
 } 
 public Query wildcardQuery(String value;
 @Nullable MultiTermQuery.RewriteMethod method;

 

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