8000 colblk: uint column families · Issue #4426 · cockroachdb/pebble · GitHub
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colblk: uint column families #4426

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jbowens opened this issue Mar 26, 2025 · 0 comments
Open

colblk: uint column families #4426

jbowens opened this issue Mar 26, 2025 · 0 comments
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@jbowens
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jbowens commented Mar 26, 2025 •
edited by cockroach-jira-scripts
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There are a few instances where we have multiple uints that are always accessed together. Block handles, consisting of an offset and a length, are one example. If we stored blob value handles' components as colblk columns, they would be another example.

We could introduce a new column type that performs the Uints-type's width reduction and deltas, but stores each row's deltas together contiguously. This would allow us to combine those memory accesses scattered across the block into a single memory access, while preserving the fixed-width encoding and delta encoding.

Jira issue: PEBBLE-365
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