bowenli86 commented on a change in pull request #10732: [FLINK-14980][docs] add
function ddl docs
URL: https://github.com/apache/flink/pull/10732#discussion_r362301757
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File path: docs/dev/table/sql/create.md
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@@ -225,3 +226,24 @@ Database properties used to store extra information
related to this database.
The key and value of expression `key1=val1` should both be string literal.
{% top %}
+
+## CREATE FUNCTION
+{% highlight sql%}
+CREATE [TEMPORARY|TEMPORARY SYSTEM] FUNCTION
+ [IF NOT EXISTS] [catalog_name.][db_name.]function_name
+ AS identifier [LANGUAGE JAVA|SCALA]
+{% endhighlight %}
+
+Create a catalog function that has catalog and database namespaces with the
identifier and optional language tag. If a function with the same name already
exists in the catalog, an exception is thrown.
+
Review comment:
maybe also document that 'identifier' for java/scala is the class name?
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