On Fri, Feb 5, 2016 at 10:17 AM, Filip Rembiałkowski
<filip.rembialkow...@gmail.com> wrote:
> - new GUC in "Statement Behaviour" section, notify_duplicate_removal
> (default true)
> Initial discussion in this thread:
> http://www.postgresql.org/message-id/CAP_rwwmpzk9=sbjrztod05bdctyc43wnknu_m37dygvl4sa...@mail.gmail.com
> Rationale: for some legitimate use cases, duplicate removal is not required,
> and it gets O(N^2) cost on large COPY/ insert transactions.

I agree with what Merlin said about this:


Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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