45. Databricks | Spark | Pyspark | PartitionBy

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Link to Dataset Used in this demo: github.com/audaciousazure/Dat...

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12 авг 2021

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Комментарии : 22

@Basket-hb5jc Месяц назад

Best creator on pyspark. Continue doing this

@rajasdataengineering7585 Месяц назад

Thank you!

@Basket-hb5jc Месяц назад

@@rajasdataengineering7585 hi I have a doubt. Which operations will make a emr cluster OOM

@sravankumar1767 2 года назад

very usefulll videos, can please do more videos

@jagadeeswaran330 2 месяца назад

Nice sir!

@rajasdataengineering7585 2 месяца назад

Thanks! Kee watching

@parameshgosula5510 2 года назад

Crisp and clear

@DeepakPatel-vc7yr Год назад

Hi Raja, Thanks for posting all the concepts! have you shared the datasets which you are referring in all lectures ? can we have these datasets please?

@gulsahtanay2341 4 месяца назад

Very useful content

@rajasdataengineering7585 4 месяца назад

Thank you!

@vineethreddy.s Год назад

If i read this partitioned data, the columns on which the partition has been done are coming at last and there by schema is changing. Is there a way to preserve the schema?

@SureshBabu-kf5jx 6 месяцев назад

Hi Raja, Canyou let the difference among, Partition by, repartition and shuffle parameter. I remember in the previous videos that we use Repartition while reading and writing dataframe to disk and shuffle parition is to increase or decrease the partitions while suffling the data in transformations. Can you you please clarify me on the same. Thanks

@aperez1969 2 года назад

Good work Raja!

@rajasdataengineering7585 2 года назад

Thanks Alfonso!

@samridhisamridhi6246 2 года назад

Hi Raja, while writing the dataframe to dbfs or blob, is there a way in which we can only write the part file and not the system files?

@simanchalmaharana2927 5 месяцев назад

Please make a detail video on salting techniques and how to do salting

@rajasdataengineering7585 5 месяцев назад

Sure, will create one

@omkargurme20 5 месяцев назад

How to create weekly partitions?

@kaminipriya9835 7 месяцев назад

Hi Sir, May i know the difference between partitionBy and repartition it's a bit confusing.

@rajasdataengineering7585 7 месяцев назад

Hi Kamini, partitionby and repartition both are completely different. Partitionby is used while writing a dataframe into a storage system. For each key new folder would be created in the storage location . Repartition is used to reduce or increase number of partitions within spark memory while applying any transformation

@kaminipriya9835 7 месяцев назад

@@rajasdataengineering7585 thanks for the reply much needed :)

@rajasdataengineering7585 7 месяцев назад

Welcome!