huaxingao commented on a change in pull request #25525: [SPARK-28786][DOC][SQL]Document INSERT statement in SQL Reference URL: https://github.com/apache/spark/pull/25525#discussion_r318340003
########## File path: docs/sql-ref-syntax-dml-insert-overwrite-directory-hive.md ########## @@ -0,0 +1,66 @@ +--- +layout: global +title: INSERT OVERWRITE DIRECTORY with Hive format +displayTitle: INSERT OVERWRITE DIRECTORY with Hive format +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 +The `INSERT OVERWRITE DIRECTORY` with Hive format overwrites the existing data in the directory with the new values using Hive `SERDE`. +Hive support must be enabled to use this command. The inserted rows can be specified by value expressions or result from a query. + +See also: + * [INSERT INTO statement](sql-ref-syntax-dml-insert-into.html) + * [INSERT OVERWRITE statement](sql-ref-syntax-dml-insert-overwrite-table.html) + * [INSERT OVERWRITE DIRECTORY statement](sql-ref-syntax-dml-insert-overwrite-directory.html) + +### Syntax +{% highlight sql %} +INSERT OVERWRITE [ LOCAL ] DIRECTORY directory_path + [ ROW FORMAT row_format ] [ STORED AS file_format ] + { { VALUES ( { value | NULL } [ , ... ] ) [ , ( ... ) ] } | query } +{% endhighlight %} + +### Parameters +#### ***directory_path***: +Specifies the destination directory. + +#### ***row_format***: +Specifies the row format for this insert. `SERDE` clause can be used to specify a custom `SERDE` for this insert. Alternatively, `DELIMITED` clause can be used to specify the native `SERDE` and state the delimiter, escape character, null character, and so on. Review comment: Will add ```Valid options are `SERDE` clause and `DELIMITED` clause.``` ---------------------------------------------------------------- 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] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
