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Hello,

Steps to reproduce:

1. Make basic program, one TPgConnection, one simple TPgQuery.
2. Compile and run program under Delphi with debugging.
3. PgConnection1.Connected := True;
4. Go to services (in Windows) and stop postgresql-x64-9.4 - PostgreSQL Server 9.4 service. (Your program should still running).
5.PgQuery1.ExecSQL;

Now you will receive a series of exceptions. One of them will be: "Project <your project name> raised exception class EAccessViolation with message 'Access violation at address 00544079 in module 'your module name>. Read of address 00000050"

There is something wrong in the TPgQuery component. Please take a look at this. I have a working example but there is no way to include it here. I hope that I've explained how to reporduce the error.

My platform is: Windows 7, 64 bit, Delphi 2009.

Best regards.

Hello,

We can't reproduce the issue on the latest PgDAC version 4.7.23. On an attempt to execute a query after server stop, a correct message is returned:

Error on data writing to the connection: An existing connection was forcibly closed by the remote host. Socket Error Code: 10054($2746)

Check this behavior on the latest PgDAC version.

Hello,

I've tested it in 4.7.23. and the same error happens. Have you tested it under the debugger?

Under this link you will find a sample program and a short video with steps to reproduce:
https://drive.google.com/open?id=0ByKpG ... HBST0hIUFU

Hope that helps,

regards.

Thank you for a sample. We have reproduced and fixed the issue.

Excellent news, thanks guys!

You are welcome. Feel free to contact us if you have any further questions.

One little question, where can I download the debugged version of the component? In my download portal (I have subscription) is the version from April, 28th 2016 (4.7.23) only available for download.

We'll try to release a new build with this fix by the end of the month.

Ok, thank you for your reply.

You are welcome. Feel free to contact us if you have any further questions.