"Thomas G. Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu> writes:
>> Is there a reason that there is not an UNLISTEN
>> command? (Like maybe it's not in ANSI SQL?)
> I'll add the new statement if you can get the backend to do something
> with it.
Doing something with it is trivial: duplicate the LISTEN code and then
change the call to Async_Listen to Async_Unlisten. (Async_Unlisten
already exists in src/backend/commands/async.c, though for some reason
it's not declared in src/include/commands/async.h.)
I'd do it if I knew exactly what-all has to be copied and pasted to make
a new SQL statement.
Probably the main question is whether the correct statement name is
"UNLISTEN", or whether ANSI specifies some other spelling ("STOP
LISTEN", maybe? SQL seems rather Cobol-ish in syntax choices, so I'd
kind of expect a phrase rather than a made-up word).
regards, tom lane
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