Subject: Re: Testing of a fast method to bulk insert a Pandas DataFrame into
 Postgres
To: Shaozhong SHI <shishaozhong@gmail.com>,
 pgsql-general <pgsql-general@lists.postgresql.org>
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From: Adrian Klaver <adrian.klaver@aklaver.com>
Message-ID: <a6105435-6bfd-8776-fe38-13ffab752f23@aklaver.com>
Date: Mon, 4 Oct 2021 09:06:40 -0700
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On 10/4/21 8:44 AM, Shaozhong SHI wrote:
> 
> Has anyone tested this one?
> A Fast Method to Bulk Insert a Pandas DataFrame into Postgres · Ellis 
> Valentiner 
> <https://ellisvalentiner.com/post/a-fast-method-to-insert-a-pandas-dataframe-into-postgres/>
> 
> I tried psql_insert_copy method, but I got the following error message.
> 
> to_sql() got an unexpected keyword argument 'method'
> 
> 
> Can anyone shed light on this?

method is a legitimate keyword:

https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.to_sql.html?highlight=to_sql#pandas.DataFrame.to_sql

So there must be something about how you used it.

Pandas version?

The actual code you used when the error occurred?


> 
> 
> Regards,
> 
> 
> David
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com