>>>>> "Tom" == Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
[domain -> base type conversion interfering with optimization]
Tom> You seem to be laboring under the delusion that this is
Tom> considered a bug.
Of course it's a bug, or at least a missing feature - there is no
justification for putting performance deathtraps in the way of using
Tom> It's a necessary semantic restriction, because the pushed-down
Tom> expression could mean different things when applied to different
Tom> data types.
Type-dependent selection of operators has already been done as part of
parse analysis, no? And the domain -> base conversion is purely a
relabelling, no? So what semantic change is possible as a result?
In response to
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