athread
Warden
Top 7.8%
Member Nº 4643
Joined Aug 2026
SQL
Common Table Expressions
Conditional Aggregation
Self-Join
Python
Modules
Iteration
Frequency Counting
Spark
Catalyst Optimizer
Correlated Comparison
Salting Strategy
Data Modeling
Metric Additivity
Solved
SQL53
Python4
Milestones
Top 2% SQL
50 solved
7-day streak
309 runs in the past 26 weeksActive days: 13 · Max streak: 8
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Recent solves
Three Peaks
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First Among Equals
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The Long Watch
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The Last Checkout
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Top 100 Batch Jobs Total Output
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Left On
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Selling Where Nobody Lives
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Allocations in Top Spending Region
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