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Data engineering, in practice.
How to move data from any source to any destination — extraction, CDC, transformation and loading, told by the team that builds Januss.
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20 articlesWhy your warehouse still holds customers the source already deleted
Upsert solves two cases and ignores the third: the row that vanished from the source and stayed in the warehouse.
The Postgres security update can switch your CDC off
The CVE-2026-6471 fix does not turn logical decoding off. It requires the plugin to sit on a list declared on the server.
When your data source is not in the connector catalog
Export by hand, ask the vendor or write the integration. The three ways out when the name is not on the list.
Why your integration bill grows when your data volume does not
The bill does not measure data, it measures a counter. And the market has at least four, each reacting to a different decision inside your pipeline.
One-way upgrade: what hosting your own ELT really costs
Open source settles one line of the spreadsheet: the licence. The others are paid in hours — and an active ELT tool ships releases all year.
Data-driven: what separates having the data from deciding with it
No company becomes data-driven by owning a dashboard. It becomes one when somebody changes their mind because of a number — and that only happens when the number is trustworthy.