Bug #577: incorect sort using order by

Christophe RIMBAUD (christophe(dot)rimbaud(at)bull(dot)net) reports a bug with a severity of 2
The lower the number the more severe it is.

Short Description
incorect sort using order by

Long Description
I have a problem with the order by command.
The column is in CHAR,
for example :
table WAPI (wapinom CHAR(6));

select wapinom from wapi order by wapinom ;
wapinom
----------
ACTI-ACC
ACTI-CRE
ACTIGINT
ACTI-MOD
ACTI-SUP
ACTU-CRE
ACTUGINT
ACTU-INL

my question : why 'ACTIGINT' is after 'ACTI-CRE'. Under Oracle 'ACTIGINT' is after 'ACTI-SUP' that's better.
I'm about to transform a big piece of oracle code to postgres and this bug is very annoyance for me .

Thanks in advance

Chris

Sample Code

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