odps-func: add page

Change-Id: Iffbbfff1252d40ef3671f9174a09e54fd1fa6de9

pages/common/odps-func.md

@@ -0,0 +1,19 @@
+# odps func
+
+> Manage functions in ODPS (Open Data Processing Service).
+
+- Show functions in the current project:
+
+`list functions;`
+
+- Create a Java function using a jar resouce:
+
+`create function {{func_name}} as {{path.to.package.Func}} using '{{package.jar}}';`
+
+- Create a Python function using a py resource:
+
+`create function {{func_name}} as {{script.Func}} using 'script.py';`
+
+- Delete a function:
+
+`drop function {{func_name}};`