Hi,
If no more people want to review this pr, I would merge it by the end of today https://github.com/apache/incubator-iotdb/pull/336 Thanks, Tian Jiang On 8/13/2019 10:58，suyue (JIRA)<j...@apache.org> wrote： suyue created IOTDB-160: --------------------------- Summary: External sort in non-sequential data Key: IOTDB-160 URL: https://issues.apache.org/jira/browse/IOTDB-160 Project: Apache IoTDB Issue Type: Improvement Reporter: suyue For the query of non-sequential data, each chunk is constructed separately as reader, then merged and sorted. When non-sequential data is large, so the number of chunks of merge is too large, it may cause the problem of exhausting memory. So when the number of chunks merged at the same time reaches a certain limit, the external method is adopted. -- This message was sent by Atlassian JIRA (v7.6.14#76016)
