Re: PGSQL 9.3.2 COPY command issues

This was exactly what I needed. Thanks so much!

On 07/18/2014 02:09 AM, Albe Laurenz wrote:

spake@surewest.netwrote:

Hi there. My first post to this list. Hopefully, as time goes by, I will be able to answer more questions than I ask. I'm trying to import a very large CSV file of npi data into psql 9.3.2 using the COPY command. The data in the CSV file is surrounded by quotes. Although there is a header, the data looks like this: "1679576722","1","","","","WIEBE", etc. Here is my psql command: COPY data FROM '/Developer/data_20140608.csv' DELIMITER ',' CSV HEADER; and here is the error I get: ERROR: invalid input syntax for type numeric: "" CONTEXT: COPY npi_data, line 2, column replacement_npi: "" psql seems to be choking on the empty fields that are quoted. Any suggestions as to how I get around this? I've tried including the QUOTES statement but it made no difference.

The problem is that the empty string is not a valid integer value.
It might be tempting to tell COPY that it should consider that as a NULL value:

COPY tabname FROM 'filename' (FORMAT 'csv', NULL '""');

but that results in

ERROR:  CSV quote character must not appear in the NULL specification

So it looks like you'll have to preprocess these files, e.g. with

sed -e 's/""/(null)/g'

and then you could import with

COPY tabname FROM 'filename' (FORMAT 'csv', NULL '(null)');

Yours,
Laurenz Albe