Thread: UHC as a server encoding?

UHC as a server encoding?

From
Chuck McDevitt
Date:
Why are certain character encodings not legal for the server_encoding?

For example, we allow EUC_KR, but disallow UHC, which is a superset of EUC_KR.

What are the rules for what is or is not allowed as server_encoding?

Is it having a conversion to MIC that is the issue?  Why is that important for server encodings?




Re: UHC as a server encoding?

From
Heikki Linnakangas
Date:
Chuck McDevitt wrote:
> Why are certain character encodings not legal for the server_encoding?
> 
> For example, we allow EUC_KR, but disallow UHC, which is a superset of EUC_KR.
> 
> What are the rules for what is or is not allowed as server_encoding?

A server-encoding must have the property that all but the first byte of 
a multi-byte character have the high bit set. IOW, by looking at an 
arbitrary byte in a string, you must be able to tell if it's part of a 
multi-byte character or an independent single byte character.

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com