On 3/17/16 9:01 AM, Robert Haas wrote:
I think that
there are an awful lot of cases where extension authors haven't been
able to quite do what they want to do without core changes because
they couldn't get control in quite the right place; or they could do
it but they had to cut-and-paste a lot of code.

FWIW, I've certainly run into this at least once, maybe twice. The case I can think of offhand is doing function resolution with variant. I don't remember the details anymore, but my recollection is that to get what I needed I would have needed to copy huge swaths of the rewrite code.
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com

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