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Hongze Cheng 2021-10-31 13:29:09 +08:00
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docs/user_manual/Small_Materialized_Aggrates.md
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@ -39,4 +39,4 @@ Users can also drop a time-range-wise SMA like below:
# drop the sma index
drop sma_index sma_5min on st;
```
**NOTE: Creating a SMA index is a heavy operation which may take a long time and block the write operation. So create the time-range-wise SMA when creating the table or when there are not too much data.**
**NOTE: Creating an SMA index is a heavy operation which may take a long time and block the write operation. So create the time-range-wise SMA when creating the table or when there are not too much data.**