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Author: Defined2014

partitioned-table.md

@@ -1783,7 +1783,7 @@ SELECT * FROM INFORMATION_SCHEMA.TIDB_INDEXES WHERE table_name='t1';
 3 rows in set (0.00 sec)
 ```
 
-When partitioning a non-partitioned table or repartitioning an already partitioned table, you can update the indexes to be global indexes or revert them to local indexes as needed:
+When partitioning a non-partitioned table or repartitioning an already partitioned table, you can update the indexes to be global indexes or revert them to local indexes as needed. The following SQL will flipping all the indexes from GLOBAL to LOCAL and LOCAL to GLOBAL. And `uidx3` needs to be global, since it does not include the new partitioning column `col1`, while `uidx12` and `idx1` can be either GLOBAL or LOCAL.
 
 ```sql
 ALTER TABLE t1 PARTITION BY HASH (col1) PARTITIONS 3 UPDATE INDEXES (uidx12 LOCAL, uidx3 GLOBAL, idx1 LOCAL);