sql-statement-create-index.md: fix the example of expression index cr…

…eate by 'create table' (pingcap#8332)
shawn0915 · Feb 11, 2022 · 0a08575 · 0a08575
1 parent f6d1e4c
commit 0a08575
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/sql-statements/sql-statement-create-index.md b/sql-statements/sql-statement-create-index.md
@@ -174,7 +174,7 @@ ALTER TABLE t1 ADD INDEX idx1((lower(col1)));
 {{< copyable "sql" >}}
 
 ```sql
-CREATE TABLE t1(col1 char(10), col2 char(10), key index((lower(col1))));
+CREATE TABLE t1(col1 char(10), col2 char(10), index((lower(col1))));
 ```
 
 > **注意：**