[Lazarus] LazDataDesktop: transaction handling

[Ondrej Pokorny]

Hello (Michael)!

I started to use LazDataDesktop because PgAdmin4 is horrible.

I have a problem with transactions with Postgres connection (well I 
tested only Postgres connection).

I found out that when using the SQL editor, I can type "COMMIT" and 
"ROLLBACK" - so far so good. (Well I would like to have a tool button 
for these commands but OK for now - I may add them in the future.)

The real problem: I cannot apply edited data from the DB grid. I keep 
getting this error:

I have clicked on the tick button - it got disabled. I have also clicked 
on the button next to refresh - well I don't know that the button does 
because it has no hint and caption, but I clicked on it nevertheless :) :

But still I get the error above and the data is not written.

How can I commit the changes made in the data grid?

Thanks
Ondrej

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lazarus-ide.org/pipermail/lazarus/attachments/20190904/8d74dcf4/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: lmoehodfcphgdjdf.png
Type: image/png
Size: 6084 bytes
Desc: not available
URL: <http://lists.lazarus-ide.org/pipermail/lazarus/attachments/20190904/8d74dcf4/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: cejbjkbmhimcgopc.png
Type: image/png
Size: 3887 bytes
Desc: not available
URL: <http://lists.lazarus-ide.org/pipermail/lazarus/attachments/20190904/8d74dcf4/attachment-0003.png>