[KDB-764] Use [] rather than null to represent all events being for one single stream #5052
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Outdated suggestions cannot be applied.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.
This simplifies the semantics a bit and avoids the risk of a null array being accidentally converted to an empty ReadOnlyMemory<>? when it should have stayed null e.g. this cast is no longer required in the MultiStreamWritesTests:
eventStreamIndexes is null ? (LowAllocReadOnlyMemory<int>?)null : eventStreamIndexes