The patchset no longer applies, so here is a rebased version. There are no changes other than the rebase and some cosmetic tweaks.
I plan to give this another self-review and push it soon, barring objections. - Richard
v3-0001-Reduce-LEFT-JOIN-to-ANTI-JOIN-using-quals-within-.patch
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v3-0002-Reduce-FULL-JOIN-to-ANTI-JOIN.patch
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v3-0003-Reduce-outer-joins-to-anti-joins-for-whole-row-IS.patch
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v3-0004-Relax-strictness-detection-for-row-format-IS-NOT-.patch
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