"System.Runtime.InteropServices.COMException: Access Violation at Address 00000000007E9BDC" Error When Generating an Explain Plan on PostgreSQL 16 (4379031)

When using Toad Data Studio 2.0 with a PostgreSQL 16 database, the following error may occur when trying to generate an Explain Plan:

Error Message: "System.Runtime.InteropServices.COMException Access violation at address 00000000007E9BDC ..."

This issue disrupts the ability to analyze query execution plans, which can impact database optimization workflows.

Steps to Reproduce:

1. Open **Toad Data Studio 2.0**.

2. Connect to a **PostgreSQL 16** database.

3. In the interface, right-click on the PostgreSQL server.

4. Select **New SQL Editor** from the context menu.

5. Drag or transfer a table into the New SQL Editor window.

6. When the dialog box appears, choose the **Select** statement option.

7. Execute the SELECT statement from the New SQL Editor window.

8. In the **Results grid**, click on **Explain Plan**.

9. The error message ("System.Runtime.InteropServices.COMException: Access violation at address 00000000007E9BDC") is displayed.

WORKAROUND:
None

STATUS:

Issue fixed in Toad Data Studio  2.0

The latest version of Toad Data Studio can be downloaded here.