Design a Delta table layout for mixed workload: point lookups by user_id, range scans by date, and full partition scans. Compare partitioning vs. Z-ordering—when to use each, and the rewrite cost trade-off.
**Section 1 — The Context (The 'Why')**
A Delta table serving point lookups (by user_id) and full scans (analytics) faces conflicting optimization. Point lookups want partition pruning by user; analytics want date partitioning.
**Section 2 — The Diagram**
```
[Delta] Z-Order:user_id | Partition:date
|
v
[Lookup][Scan][Stream]
```
**Section 3 — Component Logic**
**Partitioning strategies** use date for incremental and range pruning....
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