docs: Update map_extract examples#21360
Merged
Jefffrey merged 1 commit intoapache:mainfrom Apr 16, 2026
Merged
Conversation
github-actions
Bot
added
documentation
11 tasks
Rich-T-kid
pushed a commit
to Rich-T-kid/datafusion
that referenced
this pull request
Apr 21, 2026
## Which issue does this PR close? N/A. ## Rationale for this change While reviewing apache/datafusion-python#1461, I noticed that an example in the `map_extract` function was wrong: ```sql -- example SELECT map_extract(MAP {'x': 10, 'y': NULL, 'z': 30}, 'y'); ---- [] -- datafusion SELECT map_extract(MAP {'x': 10, 'y': NULL, 'z': 30}, 'y'); ---- [NULL] ``` ## What changes are included in this PR? - Fixed the previous example. - Also added a new example showing a `map_extract` on an empty key. ## Are these changes tested? Yes. ## Are there any user-facing changes? No.
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Which issue does this PR close?
N/A.
Rationale for this change
While reviewing apache/datafusion-python#1461, I noticed that an example in the
map_extractfunction was wrong:What changes are included in this PR?
map_extracton an empty key.Are these changes tested?
Yes.
Are there any user-facing changes?
No.