On 2023-09-06 17:29:21 +0200, Francisco Olarte wrote: > On Wed, 6 Sept 2023 at 16:40, Sai Teja <[email protected]> > wrote: > > Actually we are migrating the data from DB2 to postgreSQL. So in DB2 > > the upper method is converting µ as µ only but not as M. > > So, while validating the data we have encountered this problem. [...] > Maybe because unicode has GREEK CAPITAL LETTER MU ( 924, which looks > like capital M ), GREEK SMALL LETTER MU ( 956 ) and MICRO SIGN ( 181, > which looks like small mu ) while windows-1252 only has 0xB6 as micro. > OTOH Windows-1253 ( greek ansi ) has all three. > > If your small mu are really micro-sign ( which is suspected if youused > 1252 ) maybe changing them to that helps ( but I do not have the > resources to test that on hand ).
Nope, it doesn't:
hjp=> select chr(181) as micro, chr(956) as mu;
╔═══════╤════╗
║ micro │ mu ║
╟───────┼────╢
║ µ │ μ ║
╚═══════╧════╝
(1 row)
hjp=> select upper(chr(181)) as micro, upper(chr(956)) as mu;
╔═══════╤════╗
║ micro │ mu ║
╟───────┼────╢
║ Μ │ Μ ║
╚═══════╧════╝
(1 row)
(At least not on an Ubuntu 22.04 system using the en_US.UTF-8 locale).
IMHO uppercasing MICRO SIGN doesn't make much sense, but that was the
decision that either the libc maintainers ore the Unicode committee
made.
hp
--
_ | Peter J. Holzer | Story must make more sense than reality.
|_|_) | |
| | | [email protected] | -- Charles Stross, "Creative writing
__/ | http://www.hjp.at/ | challenge!"
signature.asc
Description: PGP signature
