[CASSANDRA-19544] Vector search should be able to restrict on clustering keys when filtering isn't required

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 5.0-beta2, 5.0, 5.1
• Component/s: Feature/Vector Search
• Bug Category: Correctness - API / Semantic Definition
• Severity: Low
• Complexity: Low Hanging Fruit
• Discovered By: Adhoc Test
• Platform: All
• Since Version: 5.0-alpha1

Source Control Link

https://github.com/apache/cassandra/commit/cada1a13c8b77fc672d67d754912cf28a7120e3c

Test and Documentation Plan

CI

• Assignee: Michael Semb Wever
• Reporter: Michael Semb Wever

Authors

Michael Semb Wever

Reviewers

Caleb Rackliffe

• Created: 08/Apr/24 22:08
• Updated: 10/Apr/24 22:29
• Resolved: 10/Apr/24 22:29

Description

With a table that has primary key((a,b),c,d)

a restriction on only the partition works,
e.g. where a=. and b=. order by . ann of .

but a restriction that also includes a forward sequence of clustering keys (i.e. a clustering key restriction that wouldn't require filtering) does not currently work.
e.g. where a=. and b=. and c=. order by . ann of .

It appears that StatementRestriction:321 is a little too greedy.