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Message-ID: <311b047d-01f1-4ce3-86de-09ff0181ba00@aklaver.com>
Date: Sun, 14 Apr 2024 13:28:31 -0700
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Subject: Re: constant crashing
To: jack <jack4pg@a7q.com>,
 "pgsql-general@lists.postgresql.org" <pgsql-general@lists.postgresql.org>
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From: Adrian Klaver <adrian.klaver@aklaver.com>
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On 4/14/24 13:18, jack wrote:
> The CSV files are being produced by another system, a WIndows app on a 
> Windows machine. I then copy them to a USB key and copy them onto the 
> ubuntu machine. The data is then imported via the COPY command.

The app?

The locale in use on the Windows machine?

The locale in use in the database?

> 
> COPY master (field01,field02..fieldX) FROM '/data/file.text' DELIMITER E'\t'
> The fields are tab delimited.
> 
> But importing the data works. I can get all the data into a single table 
> without any problems. The issue is only when I start to update the 
> single table. And that is why I started using smaller temporary tables 
> for each CSV file, to do the updates in the smaller tables before I move 
> them all to a single large table.

The import is just dumping the data in, my suspicion is the problem is 
related to using string functions on the data.

> 
> After all the data is loaded and updated, I run php programs on the 
> large table to generate reports. All of which works well EXCEPT for 
> performing the updates on the data. And I do not want to use perl or any 
> outside tool. I want it all one in SQL because I am required to document 
> all my steps so that someone else can take over, so everything needs to 
> be as simple as possible.
> 

-- 
Adrian Klaver
adrian.klaver@aklaver.com