Skip to content

[SPARK-16202][SQL][DOC] Follow-up to Correct The Description of CreatableRelationProvider's createRelation #18026

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 3 commits into from
Closed

[SPARK-16202][SQL][DOC] Follow-up to Correct The Description of CreatableRelationProvider's createRelation #18026

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
7bf5d19
[SPARK-16202][SQL][DOC] Follow-up to Correct The Description of Creat…
jaceklaskowski May 18, 2017
97a691c
After review
jaceklaskowski May 19, 2017
88b109d
Merge remote-tracking branch 'origin/master' into CreatableRelationPr…
jaceklaskowski May 19, 2017
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 7 additions & 10 deletions sql/core/src/main/scala/org/apache/spark/sql/sources/interfaces.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -163,16 +163,13 @@ trait StreamSinkProvider {
@InterfaceStability.Stable
trait CreatableRelationProvider {
/**
* Save the DataFrame to the destination and return a relation with the given parameters based on
* the contents of the given DataFrame. The mode specifies the expected behavior of createRelation
* when data already exists.
* Right now, there are three modes, Append, Overwrite, and ErrorIfExists.
* Append mode means that when saving a DataFrame to a data source, if data already exists,
* contents of the DataFrame are expected to be appended to existing data.
* Overwrite mode means that when saving a DataFrame to a data source, if data already exists,
* existing data is expected to be overwritten by the contents of the DataFrame.
* ErrorIfExists mode means that when saving a DataFrame to a data source,
* if data already exists, an exception is expected to be thrown.
* Saves a DataFrame to a destination (using data source-specific parameters)
*
* @param sqlContext SQLContext
* @param mode specifies what happens when the destination already exists
* @param parameters data source-specific parameters
* @param data DataFrame to save (i.e. the rows after executing the query)
* @return Relation with a known schema
*
* @since 1.3.0
*/
Expand Down