Hello all, Here is a proof-of-concept patch for reducing the alignment requirement for heap tuples on 64-bit systems. This patch passes the regression tests and a couple of other data sets I have thrown at it.
I am hoping to get some early feedback on this patch so I have time to make any corrections, improvements, etc before the November commit-fest deadline. There are two visible savings in the system catalogs using this patch (size was gathered using \S+): Catalog Pre-Patch Size After Patch Size pg_depend 312 kB 296 kB pg_description 160 kB 152 kB One thing I am considering, but I am not sure if it is worth the code uglification, is to wrap the majority of these checks in #ifdefs so they only are used on 64-bit systems. This would completely eliminate the impact for this patch on 32-bit systems, which would not gain any benefit from this patch. Feedback welcome! Thanks, - Ryan
heap-tuple-v1.0.patch
Description: application/download
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