docs for h3Line

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

@@ -1026,4 +1026,42 @@ Result:
 │       41162 │
 └─────────────┘
 ```
+
+## h3Line {#h3line}
+
+Returns the line of indices between the two indices that are provided.
+
+**Syntax**
+
+``` sql
+h3Line(start,end)
+```
+
+**Parameter**
+
+-   `start` — Hexagon index number that represents a starting point. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
+-   `end` — Hexagon index number that represents an ending point. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
+
+**Returned value**
+
+Array of h3 indexes representing the line of indices between the two provided indices:
+
+Type: [Array](../../../sql-reference/data-types/array.md)([UInt64](../../../sql-reference/data-types/int-uint.md)).
+
+**Example**
+
+Query:
+
+``` sql
+ SELECT h3Line(590080540275638271,590103561300344831) as indexes;
+```
+
+Result:
+
+``` text
+┌─indexes────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ [590080540275638271,590080471556161535,590080883873021951,590106516237844479,590104385934065663,590103630019821567,590103561300344831] │
+└────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
+```
+
 [Original article](https://clickhouse.com/docs/en/sql-reference/functions/geo/h3) <!--hide-->