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@1ambda
Created December 20, 2021 11:45
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# dfSelected
org.apache.spark.sql.Dataset[org.apache.spark.sql.Row] = [id: int, yearBirth: int ... 6 more fields]
# dsMaretingUser
org.apache.spark.sql.Dataset[MarketingUser] = [userId: int, yearBirth: int ... 6 more fields]
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