8000 Add cost estimation of range @> and <@ operators. · postgrespro/postgres@59d0bf9 · GitHub
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    hlinnakahlinnaka
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    Add cost estimation of range @> and <@ operators.
    The estimates are based on the existing lower bound histogram, and a new histogram of range lengths. Bump catversion, because the range length histogram now needs to be present in statistic slot kind 6, or you get an error on @> and <@ queries. (A re-ANALYZE would be enough to fix that, though) Alexander Korotkov, with some refactoring by me.
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