Demo PySpark Delta Table SCD2 implementation

This project utilizes faker-pyspark to generate random schema and dataframes to mimic data table snapshots.

Using these snapshots to process and apply SCD2 pattern into delta table as the destination.

Source of Inspiration for SCD2 pattern: https://aws-blogs-artifacts-public.s3.amazonaws.com/artifacts/BDB-2547/glue/scd-deltalake-employee-etl-job.py

Installation

Install with pip:

pip install pyspark-delta-scd2 delta-spark faker-pyspark

Please note, this package do not enforce version of delta-spark, PySpark and faker-pyspark.

When you want to use this example in AWS Glue environment, enforced versions conflict with the target environment.

Generate incremental updates to dataframe and apply scd2

>>> from pyspark_delta_scd2 import get_spark, PySparkDeltaScd2
>>> spark = get_spark()
>>> demo  = PySparkDeltaScd2(spark=spark)
>>> # initial load
>>> df1   = demo.process()
>>> # incremental update
>>> df2   = demo.process()
>>> # df2 should have some deletes, updates and inserts

Metadata

Release files for pyspark-delta-scd2 0.4.1

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Source distribution (sdist)

Source distribution for pyspark-delta-scd2 0.4.1
File	Size	Uploaded	Provenance
pyspark_delta_scd2-0.4.1.tar.gz	4.8 kB	Jun 22, 2023	Without provenance	Details

Built distribution (wheel)

Table of built distributions (wheels) for pyspark-delta-scd2 0.4.1
File	Interpreter	ABI	Platform	Reset
pyspark_delta_scd2-0.4.1-py3-none-any.whl 5.8 kB Jun 22, 2023 Without provenance	Python 3	none	any	Details

Total release size: 10.5 kB

Release files / pyspark_delta_scd2-0.4.1.tar.gz

Download URL	pyspark_delta_scd2-0.4.1.tar.gz
Size	4.8 kB
Tags	Source
SHA-256 checksum How to use checksums	`34f4a616050b9e3ddc9117f22c5013c45a8a0a8014eb56694b233aee79cec91b`
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Upload date	Jun 22, 2023
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`poetry/1.5.1 CPython/3.11.4 Darwin/22.5.0`

Release files / pyspark_delta_scd2-0.4.1-py3-none-any.whl

Download URL	pyspark_delta_scd2-0.4.1-py3-none-any.whl
Size	5.8 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`6d6ee1940e819793d7f6c60ef94e98fc23758d8df684715f41448378af98ed1f`
BLAKE2b-256 checksum How to use checksums	`3077679eb89278d089c7af244c012da2cb3cb4a5947c41d77a207a00ba5b6f92`
Upload date	Jun 22, 2023
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`poetry/1.5.1 CPython/3.11.4 Darwin/22.5.0`

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