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Your Dashboard Is Lying: The Spend Fan-Out Trap and the Lead I Lost When the API Went Down

Your Dashboard Is Lying: The Spend Fan-Out Trap and the Lead I Lost When the API Went Down

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3 min read
Switch from zero: ship a human-in-the-loop data quality agent to your team chat

Switch from zero: ship a human-in-the-loop data quality agent to your team chat

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9 min read
Building an Agentic Data Factory with Parquet, DuckDB, MCP, and Refinement Loops

Building an Agentic Data Factory with Parquet, DuckDB, MCP, and Refinement Loops

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5 min read
Reproducible Payroll Starts With a Versioned Calculation Manifest

Reproducible Payroll Starts With a Versioned Calculation Manifest

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7 min read
From Raw Data to Business Insights: Building a JCars Logistics Power BI Dashboard

From Raw Data to Business Insights: Building a JCars Logistics Power BI Dashboard

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14 min read
Spark Join Strategies on Databricks: Broadcast, Sort-Merge, Shuffle Hash, and What AQE Changes

Spark Join Strategies on Databricks: Broadcast, Sort-Merge, Shuffle Hash, and What AQE Changes

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6 min read
Read Kafka Like a Database

Read Kafka Like a Database

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12 min read
Your Python Script Works on 1,000 Rows. Then the Real CSV Arrives.

Your Python Script Works on 1,000 Rows. Then the Real CSV Arrives.

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8 min read
Maximiza el Rendimiento I/O: Consumidores Async/Await en Kafka Python

Maximiza el Rendimiento I/O: Consumidores Async/Await en Kafka Python

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1 min read
Sub-Millisecond Analytical APIs: Async ClickHouse for FastAPI in WClickHouse

Sub-Millisecond Analytical APIs: Async ClickHouse for FastAPI in WClickHouse

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1 min read
Designing a Palantir Foundry Ontology That Holds Up in Production: Object Types, Link Types, and Action Governance

Designing a Palantir Foundry Ontology That Holds Up in Production: Object Types, Link Types, and Action Governance

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8 min read
Project Sentinel: One Morning Digest for Every Failure in Our Data Stack

Project Sentinel: One Morning Digest for Every Failure in Our Data Stack

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6 min read
A unique + not_null suite stopped 3 of 17 bad batches. Here is what got through.

A unique + not_null suite stopped 3 of 17 bad batches. Here is what got through.

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4 min read
Delta Lake Table Maintenance on Databricks: OPTIMIZE, Z-ORDER vs Liquid Clustering, and VACUUM

Delta Lake Table Maintenance on Databricks: OPTIMIZE, Z-ORDER vs Liquid Clustering, and VACUUM

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6 min read
North Star KPI Tests

North Star KPI Tests

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4 min read
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