Parallel index builds in postgres thanks to work by @petervgeoghegan and others!
https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=9da0cc35284bdbe8d442d732963303ff0e0a40bc …
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I was thinking of adding more qsort specializations to make SortTuple structs smaller in some cases (24 bytes -> 16) anyway. Found this sped up CREATE INDEX CONCURRENTLY TID sort quite nicely. Maybe JITing would be the easiest way to do this.
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I think it's worth a try - I suspect it'll often end up being faster and definitely less duplicative, but ...
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