Re: explain and PARAM_EXEC

Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Sat, Feb 20, 2010 at 7:53 AM, Greg Stark <gsstark(at)mit(dot)edu> wrote:
>> Perhaps it would be clearer to display the "(Subplan 1)" in a function
>> call style format like Subplan1(b.oid)

> I thought about that, too... maybe for 9.1 we should consider it. It
> might be nice to add some sort of glyph to make the user less likely
> to think that Subplan1 is in fact a function. <Subplan1>(b.oid)?
> ${Subplan1}(b.oid)? I dunno.

You really can't escape the need to identify which $N symbol is
associated with which parameter value. As soon as you've got more than
one subplan in a query, that becomes a nontrivial thing for a user to
guess.

regards, tom lane