SQL statement is too large – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

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Briefly, this error occurs when the SQL statement sent to Elasticsearch exceeds the maximum allowed size. This could be due to a large number of fields, complex queries, or large amounts of data being processed. To resolve this issue, you can try to simplify your SQL statement by reducing the number of fields or complexity of the query. Alternatively, you can increase the maximum allowed size of the SQL statement in the Elasticsearch configuration, but this may impact performance. Lastly, consider breaking down the large SQL statement into smaller, manageable ones.

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This guide will help you check for common problems that cause the log ” SQL statement is too large; ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, parser.

Log Context

Log “SQL statement is too large;” class name is SqlParser.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 log.info("Parse tree {} " + tree.toStringTree());
 }  return visitor.apply(new AstBuilder(paramTokens; zoneId); tree);
 } catch (StackOverflowError e) {
 throw new ParsingException("SQL statement is too large; " +
 "causing stack overflow when generating the parsing tree: [{}]"; sql);
 }  private static void debug(SqlBaseParser parser) {


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