If you use Fishtown Analytics' data build tool (dbt) for data engineering and development, you may have increased your project's thread count. This is easily done in the Profiles.yml file under your .dbt/ folder for various reasons, from running
dbt test faster to configuring dbt projects for multithreading.
The Concurrent Transaction Error
But sometimes, increasing your thread count can lead to errors like this common database error showing a concurrent transaction conflict.
Completed with 1 error and 0 warnings: Database Error in model test_model (models/stg/test_model.sql) could not complete because of conflict with concurrent transaction compiled SQL at target/compiled/of_models/stg/test_model_column_name.sql
A Potential Quick Fix
This fix doesn't work for every case, but if
a) you're not trying to multithread and
b) if you're getting this error and can't even run your models, it's a quick fix.
Try returning to a single thread for
dbt run. Then you can increase your thread count when you're ready later.
That's your quick fix for the dbt database error for running concurrent transactions. Happy programming!
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