Re: psql \copy - Mailing list pgsql-general

On 04/24/2020 11:59 AM, Steve Crawford wrote:

On Fri, Apr 24, 2020 at 8:55 AM Steve Clark <steve.clark@netwolves.com> wrote:

Hello,

I am using psql to copy data extracted from an InfluxDB in csv format into postgresql.
I have a key field on the time field which I have defined as a bigint since the time I get
from InfluxDB is an epoch time.

My question is does psql abort the copy if it hits a duplicate key, or does it keep processing?

The copy will fail. You could import into a temporary table and preprocess then copy to your permanent table or use an ETL solution to remove unwanted data before importing. I don't know the nature of your data or project but perhaps that column isn't suitable for a key.

Cheers,

Steve 

I am attempting to periodically pull time series data from an InfluxDB.
The column at issue is the timestamp. I have a script that pulls the last 15 minutes of data from the InfluxDB
as csv data and pipe it into a psql -c "\copy...." command. I was looking for the simplest way to do this.

--
Stephen Clark
NetWolves Managed Services, LLC.
Sr. Applications Architect 
Phone: 813-579-3200
Fax: 813-882-0209
Email: steve.clark@netwolves.com
http://www.netwolves.com

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