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raghav sharmaAug 27, 2026 • 4 min read
Stop Re-Receiving the Advice You Already Rejected
Third time in the same thread it suggests change data capture. You ruled that out an hour ago, and y...
#ai#dataengineering#productivity#learning
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Ramkumar M NAug 28, 2026 • 7 min read
Apache Spark & PySpark, Explained Without a PhD
The first time I hit big data I didn't even know that's what it was.
#spark#bigdata#dataengineering#beginners
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Tae KimAug 31, 2026 • 4 min read
Building an investing knowledge graph, part 3: same company, seven names
When entity resolution fails, the same company becomes seven different graph nodes. What that looks ...
#graphdb#knowledgegraph#dataengineering#entityresolution
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Mohamed Hussain SAug 28, 2026 • 17 min read
ClickHouse 26.8 LTS: 57 Breaking Changes Since 26.3
If you run ClickHouse in production, you're probably on 26.3 LTS. And now 26.8 LTS has been...
#clickhouse#database#devops#dataengineering
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DataDrivenAug 27, 2026 • 7 min read
Data Engineers Now Out-Earn Data Scientists. AI Engineers Beat Both.
The salary hierarchy just flipped. Senior DEs clear $179K base. AI engineers hit $280K TC. Here is w...
#dataengineering#career#interview#beginners
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Любовь АвдееваSep 1, 2026 • 4 min read
Parsing financial PDFs without chasing 100% accuracy
Four real problems we hit while building a deterministic PDF parser for financial reports — and why ...
#python#pdf#dataengineering#pydantic
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Eduardo RabeloAug 25, 2026 • 8 min read
Declarative Automation Bundle: Bind an Existing Lakeflow Job
A matching YAML configuration file does not adopt the Lakeflow Job already in your workspace. Bind.....
#databricks#cloud#dataengineering#dab
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Tae KimAug 29, 2026 • 4 min read
Building an investing knowledge graph, part 2: the query SQL can't answer
Here is a Cypher query I can now run against the investing knowledge graph: MATCH path =...
#graphdb#knowledgegraph#dataengineering#investing
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Ethan CarterAug 25, 2026 • 7 min read
Build a Data Lake on S3-Compatible Storage
A data lake on S3-compatible storage is an object bucket holding open file formats (Parquet, ORC,...
#datalake#s3#objectstorage#dataengineering
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Evgenii TimofeevAug 31, 2026 • 4 min read
dbt Was Not Designed for Multi-Tenant SaaS. Here's How I Made It Work.
dbt expects one project, one profiles.yml, one models/ dir. I run it across hundreds of tenant direc...
#dataengineering#sql#python#architecture
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AnakinAug 27, 2026 • 4 min read
Building a Practical Ecommerce Price Intelligence Pipeline
A developer-focused guide to tracking competitor prices, matching SKUs, storing snapshots, and avoid...
#webscraping#ecommerce#python#dataengineering
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AnakinAug 28, 2026 • 4 min read
Building a Quote Monitoring Pipeline for Insurance Pricing
Build a practical quote-monitoring pipeline for insurance pricing: sampling profiles, extracting pre...
#python#dataengineering#webscraping#analytics
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Dominik KopócsAug 29, 2026 • 4 min read
The Pipeline Worked. Then the Research Outgrew It.
About a year ago, I was building a terminal-based workflow manager called Glyph.Flow. It was mostly...
#dataengineering#python#programming#productivity
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Laura Chicovis Aug 27, 2026 • 7 min read
Partitioning, clustering, and BI Engine: measuring what each one saves in BigQuery
By the end of this walkthrough you will have two versions of the same table, a repeatable way to...
#bigquery#dataengineering#sql
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MaithreyanAug 31, 2026 • 5 min read
95% of My PySpark Job Finished in 4 Minutes. The Last Task Took 40. Here's Why.
I had a PySpark job joining a large transactions table with a customer dimension table. Nothing...
#pyspark#dataengineering#apachespark#databricks
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Arpit BangreAug 28, 2026 • 1 min read
SQL Execution Order Internals: Why WHERE Fails on Aliases but ORDER BY Succeeds
Ever wondered why this query fails in SQL? SELECT department_id, COUNT(*) AS emp_count FROM...
#sql#database#dataengineering#backend
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Arpit BangreAug 29, 2026 • 2 min read
Subqueries vs CTEs: Query Optimizer Internals & Memory Spooling Explained
Many engineers believe Common Table Expressions (CTEs) are always faster than subqueries. In moder...
#database#sql#dataengineering#performance
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Bobby RayAug 27, 2026 • 3 min read
Contract Versioning in Production Pipelines: Registry, CLI, and Run History
How a git-native contract registry, semver pins, and versioned run history make dataset quality audi...
#dataengineering#python#dataquality#airflow
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Laura Chicovis Aug 31, 2026 • 6 min read
How to integrate Apache Airflow with OpenLineage for end-to-end traceability
How to integrate Apache Airflow with OpenLineage for end-to-end traceability By the end of...
#airflow#dataengineering#openlineage#datalineage
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MaithreyanAug 31, 2026 • 5 min read
My PySpark Pipeline Was Reading the Same Table 3 Times — Here's Why
My PySpark pipeline was slow. I assumed it needed more cluster resources. It actually needed one lin...
#pyspark#dataengineering#apachespark#databricks
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Arpit BangreSep 1, 2026 • 2 min read
Window Functions Demystified: ROW_NUMBER vs RANK vs DENSE_RANK (Execution Internals)
In high-scale enterprise data engineering, ranking events, deduplicating records, and calculating...
#sql#database#dataengineering#career
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Bobby RayAug 27, 2026 • 3 min read
What Should a Real Data Engineer Assessment Actually Test?
What Should a# What Should a Real Data Engineer Assessment Actually Test? Data Engineering...
#anzibloom#dataengineering#career#interviewing
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AnakinAug 31, 2026 • 4 min read
Building a real-time price monitoring pipeline that does not poison your data
A practical look at real-time web data pipelines for pricing intelligence, with validation, failure ...
#webdev#dataengineering#scraping#analytics
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Harish Kumar MulaAug 29, 2026 • 1 min read
I built a free, interactive SQL practice tool for data engineering interviews
Most data engineering interview prep resources I found online were static — a list of questions with...
#dataengineering#sql#webdev#interview
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