Re: [BUGS] BUG #14526: no unique or exclusion constraint matching the ON CONFLICT

Tiago Babo <tiago.babo@gmail.com> writes:
> I don't really understand how PostgreSQL handles indexes, but would it be
> possible that the INDEX is being used/updated at that moment and so the
> INSERT doesn't know it exists? Can concurrency also be a problem?

Data activity shouldn't matter.  If you're dropping and recreating the
whole index, that could matter.

            regards, tom lane


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