Also list Global Index as Partitioning feature (as well as Index) (#20604) (#20606)

Author: ti-chi-bot

basic-features.md

@@ -171,6 +171,7 @@ summary: 了解 TiDB 的功能概览。
 | [Range INTERVAL 分区](/partitioned-table.md#range-interval-分区) |  Y |  Y  |  Y  | Y | E | N | N | N | N | N |
 | [分区表转换为非分区表](/partitioned-table.md#将分区表转换为非分区表) |  Y |  Y  |  Y  | N | N | N | N | N | N | N |
 | [对现有表进行分区](/partitioned-table.md#对现有表进行分区) |  Y |  Y  |  Y  | N | N | N | N | N | N | N |
+| [全局索引 (Global Index)](/partitioned-table.md#全局索引) |  Y  |  N  |  N  | N | N | N | N | N | N | N |
 
 ## 统计信息