PostgreSQL Bugs

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Bug ID15805
PG Version
OS
Opened2019-05-15 12:20:48+00
Reported by
StatusNew

Body of first available message related to this bug follows.

On 2019-May-15, Daniel Gustafsson wrote:

> > I see unexpected behaviour of lower function for greek sigma letter Σ.
> > According to wikipedia (https://en.wikipedia.org/wiki/Sigma) if this letter
> > is in final word position, it should be ς in lowercase, and not σ. But
> > PotgreSQL lower function returns σ, for example lower('ΔΗΜΟΤΕΣ ΦΑΙΣΤΟΥ') =
> > "δημοτεσ φαιστου" instead of "δημοτες φαιστου". So if I try to pass this
> > lower string from another part of a system (java code, for example) Postgre
> > will not return this row cause it differs from java-generated one.
> 
> This is indeed a bug, and a rare occurrence since AFAICT from ISO 30112 and
> googling there is only a single case of word-final lowercasing which is this
> sigma. The attached patch takes a stab at fixing this.

Ummm ... isn't this a counterexample?
https://hebrew4christians.com/Grammar/Unit_One/Final_Forms/final_forms.html

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Messages

DateAuthorSubject
2019-05-15 12:20:48+00Alvaro HerreraRe: BUG #15805: Problem with =?utf-8?Q?low?= =?utf-8?Q?er_function_for_greek_sigma_=28=CE=A3=29?= letter
2019-05-15 13:44:20+00Tom LaneRe: BUG #15805: Problem with =?utf-8?Q?low?= =?utf-8?Q?er_function_for_greek_sigma_=28=CE=A3=29?= letter
2019-05-15 15:31:45+00"Daniel Verite"Re: BUG #15805: Problem with lower function for greek sigma =?UTF-8?Q?(=CE=A3)?= letter
2019-05-15 15:46:29+00Tom LaneRe: BUG #15805: Problem with lower function for greek sigma =?UTF-8?Q?(=CE=A3)?= letter
2019-05-15 17:04:05+00Alvaro HerreraRe: BUG #15805: Problem with =?utf-8?Q?low?= =?utf-8?Q?er_function_for_greek_sigma_=28=CE=A3=29?= letter