Re: 9.5 alpha: some small comments on BRIN and btree_gin

Hello,

First: KUDO !!!
The release notes are extremely promising in regard to performance improvements :-)


I've made some (dirty) tests with BRIN and btree_gin.
(on a smalll Windows laptop ...)

just a few remarks:


- btree_gin deserve a better description than that:

  "However, they are useful for GIN testing and as a base for developing other GIN operator classes."

   I came to similar times between btree and gin for indexes on "category" columns (ca 20 to 200 distinct values)
   For me, gin clearly wins here thanks to the index size difference.