Python # 0020 # Parquet Deep Dive: Row vs Column, Size Comparison (1M), & Partitioning (Pandas) скачать в хорошем качестве

Python # 0020 # Parquet Deep Dive: Row vs Column, Size Comparison (1M), & Partitioning (Pandas)

#parquet #pandas #python In this video, we take a deep dive into the Apache Parquet file format. We move beyond the basics to understand exactly how Parquet stores data and why it has become the industry standard for Big Data and Data Engineering. In this video, we will cover: ✅ What is Parquet? – An introduction to the binary columnar format. ✅ Row vs. Columnar Storage – A visual look at how data is organized on your disk. ✅ Size Comparison – A live test comparing CSV vs. Parquet using a 1-million-row dataset. ✅ Hands-on Python – How to use to_parquet and read_parquet in Pandas. ✅ Under the Hood – Understanding PAR1 Magic Bytes, Metadata, and Schema. ✅ Immutability & Partitioning – How to "update" data and organize files into folders for maximum speed. By the end of this tutorial, you will understand not just how to save a Parquet file, but how to architect your data for high-performance analytics.