Can only use regexp queries on keyword and text fields – not on – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

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Briefly, this error occurs when a regular expression (regexp) query is used on a field type that is not keyword or text. Elasticsearch supports regexp queries only on keyword and text fields. To resolve this issue, you can either change the field type to keyword or text, or use a different type of query that is compatible with the current field type. Another solution could be to create a multi-field with a keyword or text type and use the regexp query on that.

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

Log Context

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

 + "] which is of type [" + typeName() + "]");
 }  public Query regexpQuery(String value; int syntaxFlags; int matchFlags; int maxDeterminizedStates;
 @Nullable MultiTermQuery.RewriteMethod method; SearchExecutionContext context) {
 throw new QueryShardException(context; "Can only use regexp queries on keyword and text fields - not on [" + name
 + "] which is of type [" + typeName() + "]");
 }  public Query existsQuery(SearchExecutionContext context) {
 if (hasDocValues()) {

 

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