[SPARK-24640][SQL][FOLLOWUP] Update the SQL migration guide about size(NULL)
#26066
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
cloud-fan
approved these changes
Oct 9, 2019
|
thanks, merging to master! |
atronchi
pushed a commit
to atronchi/spark
that referenced
this pull request
Oct 23, 2019
…ze(NULL)` ### What changes were proposed in this pull request? The commit apache@4e6d31f changed default behavior of `size()` for the `NULL` input. In this PR, I propose to update the SQL migration guide. ### Why are the changes needed? To inform users about new behavior of the `size()` function for the `NULL` input. ### Does this PR introduce any user-facing change? No ### How was this patch tested? N/A Closes apache#26066 from MaxGekk/size-null-migration-guide. Authored-by: Maxim Gekk <max.gekk@gmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>
dongjoon-hyun
pushed a commit
that referenced
this pull request
Mar 11, 2020
…efault ### What changes were proposed in this pull request? This PR reverts #26051 and #26066 ### Why are the changes needed? There is no standard requiring that `size(null)` must return null, and returning -1 looks reasonable as well. This is kind of a cosmetic change and we should avoid it if it breaks existing queries. This is similar to reverting TRIM function parameter order change. ### Does this PR introduce any user-facing change? Yes, change the behavior of `size(null)` back to be the same as 2.4. ### How was this patch tested? N/A Closes #27834 from cloud-fan/revert. Authored-by: Wenchen Fan <wenchen@databricks.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
dongjoon-hyun
pushed a commit
that referenced
this pull request
Mar 11, 2020
…efault ### What changes were proposed in this pull request? This PR reverts #26051 and #26066 ### Why are the changes needed? There is no standard requiring that `size(null)` must return null, and returning -1 looks reasonable as well. This is kind of a cosmetic change and we should avoid it if it breaks existing queries. This is similar to reverting TRIM function parameter order change. ### Does this PR introduce any user-facing change? Yes, change the behavior of `size(null)` back to be the same as 2.4. ### How was this patch tested? N/A Closes #27834 from cloud-fan/revert. Authored-by: Wenchen Fan <wenchen@databricks.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org> (cherry picked from commit 8efb710) Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
sjincho
pushed a commit
to sjincho/spark
that referenced
this pull request
Apr 15, 2020
…efault ### What changes were proposed in this pull request? This PR reverts apache#26051 and apache#26066 ### Why are the changes needed? There is no standard requiring that `size(null)` must return null, and returning -1 looks reasonable as well. This is kind of a cosmetic change and we should avoid it if it breaks existing queries. This is similar to reverting TRIM function parameter order change. ### Does this PR introduce any user-facing change? Yes, change the behavior of `size(null)` back to be the same as 2.4. ### How was this patch tested? N/A Closes apache#27834 from cloud-fan/revert. Authored-by: Wenchen Fan <wenchen@databricks.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What changes were proposed in this pull request?
The commit 4e6d31f changed default behavior of
size()for theNULLinput. In this PR, I propose to update the SQL migration guide.Why are the changes needed?
To inform users about new behavior of the
size()function for theNULLinput.Does this PR introduce any user-facing change?
No
How was this patch tested?
N/A