functions-and-operators: function STDDEV is supported (#3912)

pingcap · Sep 15, 2020 · 57619bd · 57619bd
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commit 57619bd
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diff --git a/functions-and-operators/aggregate-group-by-functions.md b/functions-and-operators/aggregate-group-by-functions.md
@@ -117,7 +117,6 @@ group by id, val;
 
 The following aggregate functions are currently unsupported in TiDB. You can track our progress in [TiDB #7623](https://github.com/pingcap/tidb/issues/7623):
 
-- `STD`, `STDDEV`, `STDDEV_POP`
 - `STDDEV_SAMP`
 - `VAR_SAMP`
 - `JSON_ARRAYAGG`