Debugging Server Code

I'm guessing that there is no step-wise debugger for pgsql. If there
is, then glory be and call me a dummy for not R'ing TFM.

In fact, I've never heard of a step-wise debugger for any DB server, am
I wrong?

As I grovel through some plPerl code in a statement level trigger that
depends on an array of variables, I wonder if the lack of such a
debugger can be considered one of the biggest impediments to larger
adoption of server-side code. I don't mean to be facetious here, how
many serious and powerful programmers do you know who don't depend
heavily on a good debugger to step through the code and find the nasty
parts? Anyway, just a thought.

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