Xiangdong Huang created IOTDB-736:
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Summary: Query performance tracing
Key: IOTDB-736
URL: https://issues.apache.org/jira/browse/IOTDB-736
Project: Apache IoTDB
Issue Type: New Feature
Components: Core/Engine
Reporter: Xiangdong Huang
Hi,
Today I run a `select count(s1) from root.some_time_series`, while there is no
un-sequence data. The data type is text and there is 1.5TB data totally and
the time series has about 15GB data, then it spends 17s.
is that possible to trace the query process for debugging the performance?
Like what Cassandra provides, `tracing on`, and then how many sstables or
tombstone are read and the time cost is clear.
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