docs for h3GetUnidirectionalEdgesFromHexagon

docs/en/sql-reference/functions/geo/h3.md

@@ -1211,4 +1211,40 @@ Result:
 │ (599686042433355775,599686043507097599) │
 └─────────────────────────────────────────┘
 ```
+
+## h3GetUnidirectionalEdgesFromHexagon {#h3getunidirectionaledgesfromhexagon}
+
+Provides all of the unidirectional edges from the provided H3Index.
+
+**Syntax**
+
+``` sql
+h3GetUnidirectionalEdgesFromHexagon(index)
+```
+
+**Parameter**
+
+-   `index` — Hexagon index number that represents a unidirectional edge. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
+
+**Returned value**
+
+Array of h3 indexes representing each unidirectional edge:
+
+Type: [Array](../../../sql-reference/data-types/array.md)([UInt64](../../../sql-reference/data-types/int-uint.md)).
+
+**Example**
+
+Query:
+
+``` sql
+ SELECT h3GetUnidirectionalEdgesFromHexagon(1248204388774707199) as edges;
+```
+
+Result:
+
+``` text
+┌─edges─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ [1248204388774707199,1320261982812635135,1392319576850563071,1464377170888491007,1536434764926418943,1608492358964346879] │
+└───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
+```
 [Original article](https://clickhouse.com/docs/en/sql-reference/functions/geo/h3) <!--hide-->