Transitioning from analyst to data engineer, what to learn first?

In our case the root cause was an implicit cast preventing pushdown.

Is PySpark actually required for a first DE role in the India market?

Double down on SQL, modeling, and one orchestrator like Airflow or dbt. Add Python for the transforms you can't express in SQL.

Short version for anyone skimming: this is a classic case of the tool doing exactly what you told it to, not what you meant. Double check the assumption, not the code.

Increasingly yes at mid-size and larger product companies, but plenty of roles still hire on SQL, Python, and cloud basics. Add PySpark once SQL and Python are solid.

In our case the root cause was an implicit cast preventing pushdown.

Prefer a staging table plus validation gate before promoting to prod tables.

Build one end-to-end portfolio project: ingest, warehouse, tests, schedule. That beats stacking certs without any shipped work.