huaxingao commented on a change in pull request #28840: URL: https://github.com/apache/spark/pull/28840#discussion_r441750046
########## File path: docs/sql-ref-syntax-aux-refresh-function.md ########## @@ -0,0 +1,60 @@ +--- +layout: global +title: REFRESH FUNCTION +displayTitle: REFRESH FUNCTION +license: | + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +--- + +### Description + +`REFRESH FUNCTION` statement invalidates the cached function entry, which include class name +and resource location of the given function. The invalidated cache is populated right away. +Note that, refresh function only works for permanent function. Refresh native function or temporary function will cause exception. Review comment: Sorry, the suggestion I gave you yesterday has a few grammar mistakes. which include class name -> which includes the class name Note that, refresh function only works for permanent function. -> Note that `REFRESH FUNCTION` only works for permanent functions. Refresh native function or temporary function will cause exception. -> Refreshing native functions or temporary functions will cause an exception. ########## File path: docs/sql-ref-syntax-aux-refresh-function.md ########## @@ -0,0 +1,60 @@ +--- +layout: global +title: REFRESH FUNCTION +displayTitle: REFRESH FUNCTION +license: | + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +--- + +### Description + +`REFRESH FUNCTION` statement invalidates the cached function entry, which include class name +and resource location of the given function. The invalidated cache is populated right away. +Note that, refresh function only works for permanent function. Refresh native function or temporary function will cause exception. + +### Syntax + +```sql +REFRESH FUNCTION function_identifier +``` + +### Parameters + +* **function_identifier** + + Specifies a function name, which is either a qualified or unqualified name. If no database identifier is provided, use the current database. Review comment: use the current database -> uses the current database ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
