t;>> Thanks Nicholas
>>>>
>>>>
>>>>
>>>> Andy
>>>>
>>>>
>>>>
>>>> *From: *Nicholas Gustafson
>>>> *Date: *Friday, December 17, 2021 at 6:12 PM
>>>> *To: *Andrew Davidson
>>>
Davidson
>> wrote:
>>
>>> Thanks Nicholas
>>>
>>>
>>>
>>> Andy
>>>
>>>
>>>
>>> *From: *Nicholas Gustafson
>>> *Date: *Friday, December 17, 2021 at 6:12 PM
>>> *To: *Andrew Davidson
>&g
ustafson
>> *Date: *Friday, December 17, 2021 at 6:12 PM
>> *To: *Andrew Davidson
>> *Cc: *"user@spark.apache.org"
>> *Subject: *Re: AnalysisException: Trouble using select() to append
>> multiple columns
>>
>>
>>
>> Since df1 and df2 are dif
las
>
>
>
> Andy
>
>
>
> *From: *Nicholas Gustafson
> *Date: *Friday, December 17, 2021 at 6:12 PM
> *To: *Andrew Davidson
> *Cc: *"user@spark.apache.org"
> *Subject: *Re: AnalysisException: Trouble using select() to append
> multiple columns
>
Thanks Nicholas
Andy
From: Nicholas Gustafson
Date: Friday, December 17, 2021 at 6:12 PM
To: Andrew Davidson
Cc: "user@spark.apache.org"
Subject: Re: AnalysisException: Trouble using select() to append multiple
columns
Since df1 and df2 are different DataFrames, you will need to
Since df1 and df2 are different DataFrames, you will need to use a join. For
example: df1.join(df2.selectExpr(“Name”, “NumReads as ctrl_2”), on=[“Name”])
> On Dec 17, 2021, at 16:25, Andrew Davidson wrote:
>
>
> Hi I am a newbie
>
> I have 16,000 data files, all files have the same number o
