Re: Significance of Database Encoding

From: Rajesh Mallah <mallah_rajesh(at)yahoo(dot)com>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: Significance of Database Encoding
Date: 2005-05-16 02:16:50
Message-ID: 20050516021650.78342.qmail@web31014.mail.mud.yahoo.com
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--- PFC <lists(at)boutiquenumerique(dot)com> wrote:
>
> > $ iconv -f US-ASCII -t UTF-8 < test.sql > out.sql
> > iconv: illegal input sequence at position 114500
> >
> > Any ideas how the job can be accomplised reliably.
> >
> > Also my database may contain data in multiple encodings
> > like WINDOWS-1251 and WINDOWS-1256 in various places
> > as data has been inserted by different peoples using
> > different sources and client software.
>
> You could use a simple program like that (in Python):
>
> output = open( "unidump", "w" )
> for line in open( "your dump" ):
> for encoding in "utf-8", "iso-8859-15", "whatever":
> try:
> output.write( unicode( line, encoding ).encode( "utf-8" ))
> break
> except UnicodeError:
> pass
> else:
> print "No suitable encoding for line..."

This may not work . Becuase ,conversion to utf-8 can be successfull (no runtime error)
even for an incorrect guess of the original encoding but the result will be an
incorrect utf8.

Regds
Rajesh Kumar Mallah

>
> I'd say this might work, if UTF-8 cannot absorb an apostrophe inside a
> multibit character. Can it ?
>
> Or you could do that to all your table using SELECTs but it's going to be
> painful...
>
> ---------------------------(end of broadcast)---------------------------
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>


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