NOTE: This is an issue for tracking Z-order covering index.
The initial implementation is ready in #495.
Problem Statement
Currently, CoveringIndex data is stored as bucketed, and it just sorted within a bucket.
So it is usually less effective for filter queries compared to fully sorted data.
In addition, the index is applied when a given query has conditions only with the first indexed column.
Background and Motivation
TBD
Proposed Solution
Introduce Z-order covering index type to optimize filter query for multiple columns.
TBD
NOTE: This is an issue for tracking Z-order covering index.
The initial implementation is ready in #495.
Problem Statement
Currently, CoveringIndex data is stored as bucketed, and it just sorted within a bucket. So it is usually less effective for filter queries compared to fully sorted data. In addition, the index is applied when a given query has conditions only with the first indexed column.
Background and Motivation
TBD
Proposed Solution
Introduce Z-order covering index type to optimize filter query for multiple columns. TBD
Known/Potential Compatibility Issues
TBD
Design
TBD
Implementation