Skip to content
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

[SPARK-22862] Docs on lazy elimination of columns missing from an encoder #20048

Closed
wants to merge 1 commit into from
Closed

[SPARK-22862] Docs on lazy elimination of columns missing from an encoder #20048

Changes from all commits
Commits
Show all changes
1 commit
Select commit
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
4 changes: 4 additions & 0 deletions sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -401,6 +401,10 @@ class Dataset[T] private[sql](
* If the schema of the Dataset does not match the desired `U` type, you can use `select`
* along with `alias` or `as` to rearrange or rename as required.
*
* Note that `as[]` only changes the view of the data that is passed into typed operations,
* such as `map()`, and does not eagerly project away any columns that are not present in
* the specified class.
*
* @group basic
* @since 1.6.0
*/
Expand Down