RE: Back Slash \ issue - Mailing list pgsql-general

Hi Team,

Here we go. I will give the problem in more detail

Step 1:We get the dump from DB2 and this dump is flat file which can be csv,txt
Step2:There is table in PostGre where we are suppose  to upload the dump
Step3:We are using copy command to upload dump to the table using (COPY <<TableName>> from 'C:\Data_Dump\ABC.txt'
DELIMITER'|';  ) 
Step 4:In the above step we are using delimiter because the data is separated (:) in the flat which we have received
fromthe flat file 

Problem Statement:We are able to upload the data from the flat file which we got from the DB2 but few data the data
consistof  " \".For example if the CustomerName is Vinod\G in the flat file ,we expect the same data in PostGre  table
forCustomerName as Vinod\G but we see VinodG(slash is missed). 

Possible Solution: We can replace "\" with "\\" but if the file is in too large we cannot open it(we can replace if the
fileis medium or small) 

Expectation: We need a command or utility which can upload the data as it is (for example if Vinod\G then we should see
inPostGre as Vinod\G but not VinodG) 

Hope Iam detail this time :-)

Regards,
Vinod




-----Original Message-----
From: Ravi Krishna <ravikrishna@mail.com>
Sent: Friday, May 3, 2019 8:43 PM
To: Michael Nolan <htfoot@gmail.com>
Cc: Adrian Klaver <adrian.klaver@aklaver.com>; Guntry Vinod <GV00619735@TechMahindra.com>;
pgsql-general@postgresql.org;Venkatamurali Krishna Gottuparthi <VG00114307@TechMahindra.com>; Biswa Ranjan Dash
<BD00617837@TechMahindra.com>
Subject: Re: Back Slash \ issue

>
> I don't think we've seen enough representative data to know exactly what the backslash is doing.  It doesn't appear
tobe an escape, based on the sole example I've seen it appears to be a data separator between first name and last name. 
>
> It seems increasingly likely to me that you might not be in a position where the COPY command in PostgreSQL can
handleloading the database, at least not without some help.  You might have to write a program to clean up the data and
formatit for PostgreSQL.   
>
> I've spent a lot of time over the years migrating data from one platform to another, you have to know EXACTLY what
datayou currently have and what format you need it turned into before you can figure out how to do the transformation.

> --
> Mike Nolan

Fully agreed.  I have informed Guntry via email that he has to provide more information before we can help further.

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