The following bug has been logged on the website:
Bug reference: 6743
Logged by: Sp=C4=83t=C4=83rel Dan
Email address: spatarel1@yahoo.com
PostgreSQL version: 9.1.4
Operating system: Windows Vista SP2
Description:=20=20=20=20=20=20=20=20
I use "UTF8" charset and "Romania, Romanian" locale.
I came across this as I wanted to test if a symbol was a letter:
SELECT 'a' BETWEEN 'a' AND 'z'; -- true
SELECT 'z' BETWEEN 'a' AND 'z'; -- true
SELECT 'A' BETWEEN 'a' AND 'z'; -- true
SELECT 'Z' BETWEEN 'a' AND 'z'; -- false (!)
SELECT 'a' BETWEEN 'A' AND 'Z'; -- false (!)
SELECT 'z' BETWEEN 'A' AND 'Z'; -- true
SELECT 'A' BETWEEN 'A' AND 'Z'; -- true
SELECT 'Z' BETWEEN 'A' AND 'Z'; -- true
It seems that the intent is for the comparison to be case-insensitive, but
in some limit-cases it fails.
Please let me know if this turns out to be a real bug on not.
