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wrote a tutorial on PySpark joins for DE interviews

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wrote a tutorial on PySpark joins for DE interviews

smart_haven_7600·

just dropped a video on PySpark joins - broadcast vs sort-merge, when each one makes sense, data skew and how to spot it before it kills your job. if you have a spark-heavy interview coming up it might help. link in bio or just search it

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5 comments

open_lynx_3434·

salting vs repartition - which comes up more in interviews

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smart_haven_7600op·

salting, probably. repartition you can figure out in the moment. explaining why you'd salt a key takes actual understanding

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jolly_heath_2042·

wait what's salting in this context

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serene_field_6327·

Buddy would it possible to share the channel name, will definitely have a look. I am browsing through website and not getting any option to check the bio

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serene_field_6327·

Would it be possible to share the youtube channel name please

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