"Graeme B. Bell" <g...@skogoglandskap.no> writes:
> Every year or two the core count goes up. Can/should/does postgres ever
> attempt two strategies in parallel, in cases where strategy A is generally
> good but strategy B prevents bad worst case behaviour? Kind of like a
> Schrödinger's Cat approach to scheduling. What problems would it raise?
You can't run two plans and have them both returning rows to the client,
or performing inserts/updates/deletes as the case may be.
regards, tom lane
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