Unverified50% confidenceFactExact time
Catalyst 优化器进行逻辑优化包括谓词下推、列裁剪、常量折叠，物理优化选择 JOIN 策略如 Broadcast Hash Join 或 Sort Merge Join
1
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50%
Confidence
Long-term
Relevance
8/15/2026
First Seen
Sources
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