Re: Improve explicit cursor handling in pg_stat_statements

> Should we offer something more consistent with DeallocateStmt, where
> we have a boolean flag that would be set when ALL is specified,
> included in the jumbling? This would mean two separate entries: one
> for the constants and one for ALL.

Hmm, we could do that to differentiate the keyword ALL. I had a thought
earlier about differentiating the other keywords as well: FIRST, LAST,
BACKWARD, FORWARD, and ABSOLUTE. Initially, I thought it might
be a bit too much, but I do see the merit in this approach, as these are
syntactically different from their numeric counterparts.

We can accomplish this with just an extra field in FetchStmt, where each
of these keywords gets a distinct value.

What do you think?

--
Sami