Hi Bruce, Thanks for doing this work again!
> Add date_bin function (John Naylor) > > WHAT DOES THIS DO? Hard to describe in a one-liner, but it lines up timestamps into regular intervals as specified by the user. It is more clear after seeing examples: https://www.postgresql.org/docs/devel/functions-datetime.html#FUNCTIONS-DATETIME-BIN > Dramatically improve Unicode normalization (John Naylor) > > WHAT OPERATIONS USE THIS? PG13 added the normalize() function to normalize Unicode sequences, as well as the IS NORMALIZED syntax to test for that. The commits* here do not change behavior and only improve performance. As such, this really belongs in the performance section. *There is one additional commit that belongs to this entry: Author: Michael Paquier <mich...@paquier.xyz> 2020-10-11 [80f8eb79e] Use perfect hash for NFC and NFKC Unicode Normalization quick check -- John Naylor EDB: http://www.enterprisedb.com
