delta-spark · PyPI
https://pypi.org/project/delta-spark03.12.2021 · Delta Lake. Delta Lake is an open source storage layer that brings reliability to data lakes. Delta Lake provides ACID transactions, scalable metadata handling, and unifies streaming and batch data processing. Delta Lake runs on top of your existing data lake and is fully compatible with Apache Spark APIs.
pyspark.sql module — PySpark 2.2.0 documentation
spark.apache.org › docs › 2pyspark.sql.SparkSession Main entry point for DataFrame and SQL functionality. pyspark.sql.DataFrame A distributed collection of data grouped into named columns. pyspark.sql.Column A column expression in a DataFrame. pyspark.sql.Row A row of data in a DataFrame. pyspark.sql.GroupedData Aggregation methods, returned by DataFrame.groupBy().