updates per pr review

Signed-off-by: Rui Chen <rui@chenrui.dev>

Author: chenrui333

mysql/resource_grant.go

@@ -432,10 +432,6 @@ func parseResourceFromData(d *schema.ResourceData) (MySQLGrant, diag.Diagnostics
 
 	// Step 2: Get generic attributes
 	database := d.Get("database").(string)
-	if database == "" {
-		// treat an empty value as a request for global privileges
-		database = "*"
-	}
 	tlsOption := d.Get("tls_option").(string)
 	grantOption := d.Get("grant").(bool)
 

website/docs/r/grant.html.markdown

@@ -74,7 +74,7 @@ The following arguments are supported:
 * `user` - (Optional) The name of the user. Conflicts with `role`.
 * `host` - (Optional) The source host of the user. Defaults to "localhost". Conflicts with `role`.
 * `role` - (Optional) The role to grant `privileges` to. Conflicts with `user` and `host`.
-* `database` - (optional) The database to grant privileges on.
+* `database` - (Optional) The database to grant privileges on. Defaults to `*`, which is all databases.
 * `table` - (Optional) Which table to grant `privileges` on. Defaults to `*`, which is all tables.
 * `privileges` - (Optional) A list of privileges to grant to the user. Refer to a list of privileges (such as [here](https://dev.mysql.com/doc/refman/5.5/en/grant.html)) for applicable privileges. Conflicts with `roles`.
 * `roles` - (Optional) A list of roles to grant to the user. Conflicts with `privileges`.