Important topics to relearn

• Query optimizer
• Vaccum
• Shallow Clone, Deep Clone
• Predictions using MLFlow
• apply spark udf functions
• Stream-Stream Joins
• Auto- Loader
• trigger syntax
• structure streaming syntax, wth auto loader, trigger see all the examples
• Database accesses. syntax
• use of location keyword
• OPTIMIZE
• trigger(availableNow=True)
• Spark UDF
• Auto Optimize
• Stream-Stream Joins
• Stream-Static joins
• Window and Watermark
• foreachbatch (for non time based window operation)