Subject: Re: Testing of a fast method to bulk insert a Pandas DataFrame into
 Postgres
From: Adrian Klaver <adrian.klaver@aklaver.com>
To: Shaozhong SHI <shishaozhong@gmail.com>
Cc: pgsql-general <pgsql-general@lists.postgresql.org>
References: 
 <CA+i5JwYnUBCKSnWn96OvtF66oGYHNGefMd5V_Bgceu=4PtcDNw@mail.gmail.com>
 <CA+i5JwY1jDx3jyBCkuJQhOyPELAoYVFtOmCqgxotTXmGc3wO9g@mail.gmail.com>
 <a6105435-6bfd-8776-fe38-13ffab752f23@aklaver.com>
 <CA+i5JwZkQJ2su4n14tg0Cyer5=ek17KnWhOYdiq-rnw9MRrt2Q@mail.gmail.com>
 <1b86e754-0317-84df-848f-9218e8df73e9@aklaver.com>
 <CA+i5JwbRVj4tC7Qw5ex0iat+ZoP_qsZ6WB-noeoDk2WCwWYMQw@mail.gmail.com>
 <d883ed79-df00-5880-85fc-36a6639389c9@aklaver.com>
Message-ID: <c00dacdc-b40b-29bf-85cd-149e0d0a9608@aklaver.com>
Date: Mon, 4 Oct 2021 10:30:22 -0700
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.7.0
MIME-Version: 1.0
In-Reply-To: <d883ed79-df00-5880-85fc-36a6639389c9@aklaver.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Archived-At: 
 <https://www.postgresql.org/message-id/c00dacdc-b40b-29bf-85cd-149e0d0a9608%40aklaver.com>
Precedence: bulk

On 10/4/21 10:28 AM, Adrian Klaver wrote:
> On 10/4/21 10:10 AM, Shaozhong SHI wrote:
>> Hello, Adrian Klaver,
>> What is the robust way to upgrade Pandas?
> 
> Carefully.
> 
> The most recent version is 1.3.3, which is approximately 5 versions 
> ahead of where you are now. The big jump is when Pandas went from 0.25 
> to 1.0. See docs here:
> 
> https://pandas.pydata.org/docs/whatsnew/v1.0.0.html?highlight=upgrade
> 
> So the process should be 0.24 -> 0.25, verify, 0.25 -> 1.0, verify. Then 
> on to wherever you want to end up a step at a time.
> 
> Before each step spend time here:
> 
> https://pandas.pydata.org/docs/whatsnew/
> 
> to see what the gotcha's are.

Should have added:

If you are not already working in a virtualenv it would be a good idea 
to do the above in one or more.

> 
> 
>> Regards,
>> David
>>
> 
> 
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com