From: | PG Bug reporting form <noreply(at)postgresql(dot)org> |
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To: | pgsql-bugs(at)lists(dot)postgresql(dot)org |
Cc: | iksss(dot)88(at)gmail(dot)com |
Subject: | BUG #15805: Problem with lower function for greek sigma (Σ) letter |
Date: | 2019-05-15 07:57:02 |
Message-ID: | 15805-c2d0a529470e5b5f@postgresql.org |
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Lists: | pgsql-bugs |
The following bug has been logged on the website:
Bug reference: 15805
Logged by: Sergey kuznetsov
Email address: iksss(dot)88(at)gmail(dot)com
PostgreSQL version: 9.6.10
Operating system: linux
Description:
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.
Thanks,
Sergey Kuznetsov
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