On 22.04.22 16:14, Tom Lane wrote:
> That analogy would be compelling if exclusion constraints were a
> SQL-standard feature; but they aren't so their clause syntax is
> fully under our control. The scenario that worries me is that
> somewhere down the pike, the SQL committee might extend the
> syntax of PKEY/UNIQUE constraint clauses in a way that breaks
> our nonstandard extensions of them.
Some syntax like
PRIMARY KEY (x, y) USING ACCESS METHOD hash
should be able to avoid any future clashes.
