On 7/31/17 16:13, Markus Sintonen wrote:
> This patch has no know backward compatibility issues with the existing
> /LISTEN///UNLISTEN/ features. This is because patch extends the existing
> syntax by accepting quoted strings which define the patterns as opposed
> to the existing SQL literals.

I don't see that in the patch.  Your patch changes the syntax LISTEN
ColId to mean a regular expression.

Even then, having LISTEN "foo" and LISTEN 'foo' mean different things
would probably be confusing.

I would think about specifying an operator somewhere in the syntax, like
you have with LISTEN SIMILAR TO.  It would even be nice if a
non-built-in operator could be used for matching names.

Documentation is missing in the patch.

Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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