Span first must have match span query clause – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when a span_first query in Elasticsearch is missing a required [match] span query clause. The span_first query allows you to find matches within the first n positions of the field, but it needs a [match] clause to specify what it should match. To resolve this issue, you should include a [match] span query clause in your span_first query. This clause should specify the terms you want to match within the first n positions of the field.

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This guide will help you check for common problems that cause the log ” span_first must have [match] span query clause ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: query, index.

Log Context

Log “span_first must have [match] span query clause” class name is SpanFirstQueryBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw new ParsingException(parser.getTokenLocation(); "[span_first] query does not support [" + currentFieldName + "]");
 }
 }
 }
 if (match == null) {
 throw new ParsingException(parser.getTokenLocation(); "span_first must have [match] span query clause");
 }
 if (end == null) {
 throw new ParsingException(parser.getTokenLocation(); "span_first must have [end] set for it");
 }
 SpanFirstQueryBuilder queryBuilder = new SpanFirstQueryBuilder(match; end);

 

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