spark-instrumented-optimizer/docs/sql-data-sources-csv.md
twoentartian a72f0d7c90 [SPARK-34492][DOCS] Add "CSV Files" page for Data Source documents
### What changes were proposed in this pull request?

Fix [SPARK-34492], add Scala examples to read/write CSV files.

### Why are the changes needed?

Fix [SPARK-34492].

### Does this PR introduce _any_ user-facing change?

No

### How was this patch tested?

Build the document with "SKIP_API=1 bundle exec jekyll build", and everything looks fine.

Closes #31827 from twoentartian/master.

Authored-by: twoentartian <twoentartian@hotmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2021-04-05 11:17:42 +09:00

1.6 KiB

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global CSV Files CSV Files 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.

Spark SQL provides spark.read().csv("file_name") to read a file or directory of files in CSV format into Spark DataFrame, and dataframe.write().csv("path") to write to a CSV file. Function option() can be used to customize the behavior of reading or writing, such as controlling behavior of the header, delimiter character, character set, and so on.

{% include_example csv_dataset scala/org/apache/spark/examples/sql/SQLDataSourceExample.scala %}
{% include_example csv_dataset java/org/apache/spark/examples/sql/JavaSQLDataSourceExample.java %}
{% include_example csv_dataset python/sql/datasource.py %}