"Joshua D. Drake" <jd(at)commandprompt(dot)com> writes:
> HOT works because EDB refused to accept the inherit limitations of
> PostgreSQL. COPY is no different in that aspect. Maybe it can't go
> exponentially faster but the math says, "if done correctly, it can".
You can always make it faster if it doesn't have to give the right
answer ;-). Or in more practical terms in this case, we have to balance
speed against potentially-large costs in maintainability, datatype
extensibility, and suchlike issues if we are going to try to get more
than percentage points out of straight COPY.
regards, tom lane
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