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Apache Data Lakehouse Weekly: July 1 to July 8, 2026
Alex Merced
Alex Merced
Alex Merced
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Jul 9
Apache Data Lakehouse Weekly: July 1 to July 8, 2026
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news
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data
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dataengineering
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opensource
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24 min read
"A Fair Coin Isn't Enough: When a Perfectly Randomized Experiment Is Impossible to Analyze"
John
John
John
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Jul 10
"A Fair Coin Isn't Enough: When a Perfectly Randomized Experiment Is Impossible to Analyze"
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analytics
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data
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dataengineering
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datascience
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6 min read
How do I answer "what did my data look like last month" in Postgres?
Wonder-David Efe
Wonder-David Efe
Wonder-David Efe
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Jul 9
How do I answer "what did my data look like last month" in Postgres?
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ai
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dataengineering
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sql
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temporalqueries
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4 min read
You Don't Need to Scrape BORME: Spain's Company Registry Has an Open-Data API
George K.
George K.
George K.
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Jul 9
You Don't Need to Scrape BORME: Spain's Company Registry Has an Open-Data API
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webscraping
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ai
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opendata
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dataengineering
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3 min read
3 Staff Engineers Couldn't Pass This Single DE Job Posting
DataDriven
DataDriven
DataDriven
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Jul 9
3 Staff Engineers Couldn't Pass This Single DE Job Posting
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dataengineering
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career
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interview
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beginners
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6 min read
The State of Apache Polaris in July 2026: From Incubating Catalog to the Governance Layer of the Open Lakehouse
Alex Merced
Alex Merced
Alex Merced
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Jul 8
The State of Apache Polaris in July 2026: From Incubating Catalog to the Governance Layer of the Open Lakehouse
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news
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database
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dataengineering
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22 min read
The State of Apache Parquet in 2026: The Quiet Format Enters Its Loudest Decade
Alex Merced
Alex Merced
Alex Merced
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Jul 8
The State of Apache Parquet in 2026: The Quiet Format Enters Its Loudest Decade
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data
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dataengineering
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21 min read
Delete Files vs Deletion Vectors in Apache Iceberg: How V3 Rewrote the Economics of Changing Data
Alex Merced
Alex Merced
Alex Merced
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Jul 8
Delete Files vs Deletion Vectors in Apache Iceberg: How V3 Rewrote the Economics of Changing Data
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architecture
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database
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dataengineering
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performance
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22 min read
The State of Apache Iceberg v4 in July 2026: What the Dev List Tells Us About the Format's Next Chapter
Alex Merced
Alex Merced
Alex Merced
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Jul 8
The State of Apache Iceberg v4 in July 2026: What the Dev List Tells Us About the Format's Next Chapter
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dataengineering
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22 min read
bronze, silver, and gold standard data vault 2.0
Philip Hern
Philip Hern
Philip Hern
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Jul 9
bronze, silver, and gold standard data vault 2.0
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datavault
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dataengineering
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modeling
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architecture
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8 min read
Day 67 of #100DaysOfClickHouse: Securing ClickHouse® with SSL/TLS and LDAP Authentication
Kanishga Subramani
Kanishga Subramani
Kanishga Subramani
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Jul 9
Day 67 of #100DaysOfClickHouse: Securing ClickHouse® with SSL/TLS and LDAP Authentication
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clickhouse
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devops
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database
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dataengineering
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5 min read
Your Data Pipeline Is Probably More Fragile Than You Think
Sampada
Sampada
Sampada
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Jul 9
Your Data Pipeline Is Probably More Fragile Than You Think
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dataengineering
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data
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4 min read
OLTP vs OLAP : Understanding the Foundation of Modern Data Systems
Mohamed
Mohamed
Mohamed
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Jul 9
OLTP vs OLAP : Understanding the Foundation of Modern Data Systems
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architecture
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database
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dataengineering
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systemdesign
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4 min read
The Variant Type in Apache Iceberg: How Shredding Turns Messy JSON Into Fast Analytics
Alex Merced
Alex Merced
Alex Merced
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Jul 8
The Variant Type in Apache Iceberg: How Shredding Turns Messy JSON Into Fast Analytics
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analytics
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database
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dataengineering
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performance
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22 min read
Designing Schema Boundaries for AI Agents
Takafumi Endo
Takafumi Endo
Takafumi Endo
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Jul 8
Designing Schema Boundaries for AI Agents
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ai
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database
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dataengineering
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dbt
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12 min read
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