Message-ID: <gh-postgresql-interfaces-psqlodbc-132@github.com>
From: "gabriellestein (@gabriellestein)" <noreply+gabriellestein@github.com>
To: "postgresql-interfaces/psqlodbc" <noreply+postgresql-interfaces-psqlodbc@github.com>
Date: Mon, 14 Jul 2025 19:28:36 +0000
Subject: [postgresql-interfaces/psqlodbc] issue #132: Crash seen when attempting to use SetPos when looping through more than 20480 rows
List-Id: <gh-postgresql-interfaces-psqlodbc.github.com>
X-GitHub-Author-Id: 59923724
X-GitHub-Author-Login: gabriellestein
X-GitHub-Issue: 132
X-GitHub-Repo: postgresql-interfaces/psqlodbc
X-GitHub-State: open
X-GitHub-Type: issue
X-GitHub-Url: https://github.com/postgresql-interfaces/psqlodbc/issues/132
Content-Type: text/plain; charset=utf-8

When looping through the rows in a table with more than 20480 rows using SetPos delete, the driver crashes with a segmentation fault (core dump). I have attached to this issue in a zip file:

- odbcquery_setpos_del_lax: ODBC app that can be used to recreate the issue
- odbcquery_setpos_del_lax.c: c file use to make the ODBC app.
- odbcquery_setpos_del.mak: Makefile to build ODBC app. Note that the directory paths to the install directory have been redacted.
- odbc.ini: ODBC ini file. Note the paths and sensitive information has been redacted.

If anything else is needed please let me know.

[odbcquery_setpos_del.zip](https://github.com/user-attachments/files/21221461/odbcquery_setpos_del.zip)