sweet_timber_4723
Exemplar
Top 2.6%
Joined Sep 2026
SQL
Scalar Subquery
Common Table Expressions
Storage Optimization
Python
Context Managers
Copying Lists
Nested Dicts
Spark
Window Deduplication
First & Last Values
Multiple Windows
Data Modeling
Metric Additivity
Indexing
SCD Strategy
Pipeline Architecture
SCD in Pipelines
Solved
Milestones
Top 3% SQL
Top 6% Python
50 solved
7-day streak
148 runs in the past 26 weeksActive days: 16 · Max streak: 7
MayJunJulAugSepOct
Recent solves
The Original Keeper
Python · easy
The Column Shuffle
Python · medium
The Dominant Signal
Python · easy
The Only Difference
Python · easy
The Endless Thread
Data Modeling · medium
The Unbroken Line
Python · medium
The Output Peak
Python · hard
The Infection Spread
Python · hard
Where the Buck Stops
Python · hard
Single File
Python · easy