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Anton Gameza

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A backfill can match row counts and totals while still being wrong
antony502189max profile

A backfill can match row counts and totals while still being wrong

#dataengineering #python #testing
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4 min read

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BETWEEN can double-count a fact at an SCD2 version boundary
antony502189max profile

BETWEEN can double-count a fact at an SCD2 version boundary

#sql #dataengineering #sqlite #testing
Comments
4 min read
A deleted CDC row still needs a version: a Python counterexample
antony502189max profile

A deleted CDC row still needs a version: a Python counterexample

#dataengineering #python #testing
Comments
4 min read
An old event timestamp can still leak future information into training data
antony502189max profile

An old event timestamp can still leak future information into training data

#dataengineering #sql #machinelearning #python
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4 min read
Parsing money in Python: reject bad precision before choosing how to round
antony502189max profile

Parsing money in Python: reject bad precision before choosing how to round

#python #dataengineering #testing
Comments
4 min read
Your SQLite backup restored. Does its checkpoint still match the data?
antony502189max profile

Your SQLite backup restored. Does its checkpoint still match the data?

#python #dataengineering #sqlite
Comments
4 min read
Replaying payment events: test the second run, not just the first
antony502189max profile

Replaying payment events: test the second run, not just the first

#dataengineering
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2 min read
Free SQL practice: why SUM(DISTINCT) doesn't fix inflated payment totals
antony502189max profile

Free SQL practice: why SUM(DISTINCT) doesn't fix inflated payment totals

#sql #database #tutorial #opensource
Comments
5 min read
Free fintech data engineering lab: find a missing dollar with Python + SQLite
antony502189max profile

Free fintech data engineering lab: find a missing dollar with Python + SQLite

#python #database #tutorial #fintech
Comments
3 min read
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