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docs/source/user-guide/sql/scalar_functions.md

@@ -549,6 +549,7 @@ trunc(numeric_expression[, decimal_places])
 - [coalesce](#coalesce)
 - [greatest](#greatest)
 - [ifnull](#ifnull)
+- [least](#least)
 - [nullif](#nullif)
 - [nvl](#nvl)
 - [nvl2](#nvl2)
@@ -603,6 +604,29 @@ greatest(expression1[, ..., expression_n])
 
 _Alias of [nvl](#nvl)._
 
+### `least`
+
+Returns the smallest value in a list of expressions. Returns _null_ if all expressions are _null_.
+
+```
+least(expression1[, ..., expression_n])
+```
+
+#### Arguments
+
+- **expression1, expression_n**: Expressions to compare and return the smallest value.. Can be a constant, column, or function, and any combination of arithmetic operators. Pass as many expression arguments as necessary.
+
+#### Example
+
+```sql
+> select least(4, 7, 5);
++---------------------------+
+| least(4,7,5)              |
++---------------------------+
+| 4                         |
++---------------------------+
+```
+
 ### `nullif`
 
 Returns _null_ if _expression1_ equals _expression2_; otherwise it returns _expression1_.