On Mon, May 17, 2021 at 01:48:03PM -0700, Andres Freund wrote: > pg_attribute is one of the biggest table in a new cluster, and often the > biggest table in production clusters. Its size is also quite relevant in > memory, due to all the TupleDescs we allocate. > > I just noticed that the new attcompression increased the size not just > by 1 byte, but by 4, due to padding. While an increase from 112 to 116 > bytes isn't the end of the world, it does seem worth considering using > existing unused bytes instead?
+1 FYI: attcompression was an OID until a few weeks before the feature was merged, and there were several issues related to that: aa25d1089 - fixed two issues 226e2be38 -- Justin
