ZHANG Hao
ZHANG Hao
**Describe the feature you'd like** Support `STDDEV` op: ```sql SELECT STDDEV(col1) OVER w1 FROM t1 WINDOW w1 AS (PARTITION BY col0 ORDER BY col2 ROWS BETWEEN 2 PRECEDING AND CURRENT...
**Describe the feature you'd like** we should have a mechanism to tell the users whether they are using the `long_window` optimization or not for a deployment.
**Bug Description** Under pressure, OpenMLDB tablet got segmentation fault randomly. **Expected Behavior** **Relation Case** **Steps to Reproduce** 1. client with 32 concurrancy run continously 2. 1 tablet, 1 nameserver 3....