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Feat/column #113
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Feat/column #113
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Hello, Some doctests introduced in this PR were previously failing as they rely on DataFrame, which will be part of another PR, I commented them out, so that function usage still is documented |
This was referenced Oct 3, 2020
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Implements Column!
Columns represent either the data in a DataFrame of the result of a computation.
df.firstname
is a Column,df.firstname + lit(" ") + df.lastname
is a Column too.Also implement the first
pyparkling.sql.functions
:col
, that returns a Column based on a column name.when
, that evaluates a list of conditions and returns one of multiple possible result expressions.File modified by this PR:
This PR is on top of #112 so it also contains change from #108/#109/#110/#111/#112 compared to master.