Predicate Columns Feature Evolution
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affects-8.5
sig/planner
type/enhancement
- Dominant language
- Go
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Description
## Enhancement
1. Temporarily change the default value to "all" and cherry-pick it back to 8.5. And we ensure no analyze performance regression during upgrades, if users were previously using "predicate," they will continue using "predicate" after the upgrade.
2. Make more efficient and lower-cost collection of all NDVs the evolution goal for the next phase. Once this feature is delivered, collect NDV for all non-predicate columns, but don't collect TopN and Buckets.
3. For SaaS scenarios, explore how to enable new tenants to inherit predicate columns.
4. Once steps 1, 2, and 3 above are all completed, change the default value back to "predicate."
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