Add doc of modify replication num upon partition (#1611)

2019-08-08 16:47:32 +08:00
parent f4ad2381e6
commit 326d765c64
1 changed files with 10 additions and 1 deletions
--- a/docs/documentation/cn/sql-reference/sql-statements/Data
+++ b/docs/documentation/cn/sql-reference/sql-statements/Data
@ -146,7 +146,16 @@
        ADD PARTITION p1 VALUES LESS THAN ("2015-01-01")
        DISTRIBUTED BY HASH(k1) BUCKETS 20;

-    3. 删除分区
+    3. 增加分区，使用新的副本数
+        ALTER TABLE example_db.my_table
+        ADD PARTITION p1 VALUES LESS THAN ("2015-01-01")
+        ("replication_num"="1");
+
+    4. 修改分区副本数
+        ALTER TABLE example_db.my_table
+        MODIFY PARTITION p1 SET("replication_num"="1");
+
+    5. 删除分区
        ALTER TABLE example_db.my_table
        DROP PARTITION p1;