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PySpark

Home » PySpark
Apache-Iceberg-Amazon-Athena-
Posted inAIML Backend Cloud Computing

How to Remove Duplicates from an Apache Iceberg Table in Athena (Without a Unique ID or Timestamp)

Duplicate data in data lakes is one of the most common and frustrating challenges for data engineers. But what happens when: You don’t have a primary key You don’t have…
Posted by Afzal Malik March 2, 2026
lazy-evalution
Posted inPySpark

Understanding Lazy Evaluation and DAG in Apache Spark

Introduction Lazy Evaluation and DAG in Spark are two core concepts that every beginner must understand. These principles play a vital role in making Apache Spark fast, fault-tolerant, and memory-efficient.…
Posted by Afzal Malik April 11, 2025
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