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authorTom Lane2018-12-20 17:19:07 +0000
committerTom Lane2018-12-20 17:19:07 +0000
commit216af5eea5c8fdc9fca9d44da9eec33ac5e002d2 (patch)
treef99de0205f3b47741f39fe33589f0f99a4fab7d7 /src/backend/access/gist/gist.c
parent0c2377152f2b68d46a27d5821a2327b6ca441fca (diff)
Make bitmapset.c use 64-bit bitmap words on 64-bit machines.
Using the full width of the CPU's native word size shouldn't cost anything in typical cases. When working with large bitmapsets, this halves the number of operations needed for many common BMS operations. On the right sort of test case, a measurable improvement is obtained. David Rowley Discussion: https://postgr.es/m/CAKJS1f9EGBd2h-VkXvb=51tf+X46zMX5T8h-KYgXEV_u2zmLUw@mail.gmail.com
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