仕様の都合だろうけど、distinctが使えないので、こんな書き方は出来ない。 fields distinct @logStream | filter @logStream like /dev/ | filter @logStream like /ERROR/ | sort @timestamp asc | limit 20

fields @logStream, @message | filter @logStream like /dev/ | filter @logStream like /ERROR/ | sort @timestamp asc | limit 20 CloudWatch Logs Insights クエリ構文 - Amazon CloudWatch Logs