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The statistics-based cost estimation patch for range types broke that, by incorrectly assuming that the left operand of all range oeprators is a range. That lead to a "type x is not a range type" error. Because it took so long for anyone to notice, add a regression test for that case. We still don't do proper statistics-based cost estimation for that, so you just get a default constant estimate. We should look into implementing that, but this patch at least fixes the regression. Spotted by Tom Lane, when testing query from Josh Berkus. |
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