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Re:Airbyte: Simple and extensible open-source EL(T) by marcinzm on Saturday January 16, 2021 @09:55AM (#25802554)
Let's say you're loading data from Postgres into Snowflake. Pretty simple integration ETL. You need to:

* Make sure you're only loading incremental updates

* Make sure you don't miss any data while doing incremental updates. This includes deleted rows.

* Update the Snowflake table schemas as Postgres schemas change. If this is impossible you need to alert someone.

* Keep historical metrics so you know if the job is slow or too much data or whatever.

Now do this for twenty different data sources every hour.

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