Unknown arithmetic – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch encounters an arithmetic operation that it doesn’t recognize or understand. This could be due to a syntax error, a typo, or an unsupported operation in your query. To resolve this issue, you should first check your query for any obvious mistakes. If everything seems correct, try simplifying your query or breaking it down into smaller parts to identify the problematic operation. Also, ensure that you’re using the correct field types for your operations. Lastly, make sure you’re using a version of Elasticsearch that supports the operations you’re trying to perform.

This guide will help you check for common problems that cause the log ” Unknown arithmetic {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: parser, plugin.

Log Context

Log “Unknown arithmetic {}” class name is ExpressionBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 case EqlBaseParser.ASTERISK -> new Mul(source; left; right);
 case EqlBaseParser.SLASH -> new Div(source; left; right);
 case EqlBaseParser.PERCENT -> new Mod(source; left; right);
 case EqlBaseParser.PLUS -> new Add(source; left; right);
 case EqlBaseParser.MINUS -> new Sub(source; left; right);
 default -> throw new ParsingException(source; "Unknown arithmetic {}"; source.text());
 }  @Override
 public Literal visitBooleanValue(EqlBaseParser.BooleanValueContext ctx) {


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