Studio 8.1.6 Pgdam - background workers . Anybody seen -30 errors: unable to connect

Doug Easterbrook doug at
Sun Nov 18 20:36:50 EST 2018

I’ve got something unexplained going on with background workers in the pgdam in Studio 8.1.6.

I’ve only really been playing with OSX version - so I don’t know if its cross platfor or not.

the symptons
- I open a window and search for something
- that goes to a background worker
- the data is found and the list gets filled.

do this a bunch off times .  Same window or diferent window.   each widows has its own instance var for a background worker.

eventually, I see a -30 error from the background worker.    The text says that it is a connection error.

I cannot get any more background workers to run at all, until I quit Studio.

however, sending SQL on the foreground thread using a table class — works just fine, and continues to do so.

For what its worth, the code for the foreground worker is untouched from  our studio 5 version where it has worked for about 8 years, untouched.     I just ported the library to studio 8.

and there isn’t much code to make it work.

anyway, anybody had any sort of interesting errors from pgsql workers in background?????

Doug Easterbrook
Arts Management Systems Ltd.
mailto:doug at
Phone (403) 650-1978

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