Add isNull() to ComparisonOperators#5202
Open
sathish256 wants to merge 1 commit into
Open
Conversation
Introduce an additive isNull() builder on ComparisonOperators and its Eq operator that renders to { $eq: [ <value>, null ] }. This lets users compare a field or expression to null without the previous workaround of passing a null-returning expression, while leaving the existing equalToValue(...) null-rejection contract unchanged.
Closes spring-projects#3473
Signed-off-by: sathish256 <17120479+sathish256@users.noreply.github.com>
spring-projects-issues
added
the
status: waiting-for-triage
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
3 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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Adds an additive
isNull()builder toComparisonOperators(and itsEqoperator) so a field or expression can be compared tonullin aggregation expressions:This renders to the output requested in the issue and avoids the previous workaround of passing a
null-returning expression (equalTo(ctx -> null)). The existingequalToValue(...)contract (which rejectsnull) is left unchanged.A unit test is added in
ProjectionOperationUnitTests(// GH-3473).Closes #3473