Very well said, Martin.
You’re spot on. Accepting your mistakes, and learning from them, will eventually separate you from the pack. Not many are willing to do this.
Spark SQL; Luckily, I learned it at my current job because the team was already using it, and it does make our lives easier. New technologies mainly demand a bit of extra learning upfront but do pay off.
Thank you for being open about your mistakes and writing a thoughtful response. Nice to meet you, Max! :)