lunar_pine_1104
Arbiter
Top 0.3%
Member Nº 1549
Joined Jun 2026
SQL
Common Table Expressions
Conditional Aggregation
Date Truncation
Python
Type Conversion
Data Types
Spark
Window Deduplication
Multiple Windows
Inequality Joins
Data Modeling
Self-Referential
Many-to-Many
One-to-One
Pipeline Architecture
Data Quality & Validation
Solved
Python0
Milestones
Top 100
Steward ×4
Top 1% SQL
250 solved
Hire verdict
30 active days
4,266 runs in the past 26 weeksActive days: 76 · Max streak: 26
MayJunJulAugSepOct
Recent solves
Bronze Medal
SQL · easy
Python Foundations: Beginner, Data Types Challenge 3
Python · easy · lesson
Python Foundations: Beginner, Variables and Assignment Challenge 2
Python · easy · lesson
Python Foundations: Beginner, Variables and Assignment Challenge 1
Python · easy · lesson
Python Foundations: Beginner, Variables and Assignment Challenge 3
Python · easy · lesson
Top N Per Group: Advanced
SQL · easy · lesson
The Loudest Failures
SQL · medium
The High and the Low
SQL · hard
Most Efficient Region by Token Usage
SQL · hard
The Usual Suspects
SQL · hard