Thank you (all) for the answer.




Em 17/06/2016 10:31, Dmitry Yemanov dimitr@...
[firebird-support] escreveu:

> 17.06.2016 10:56, Dimitry Sibiryakov sd@... wrote:
>>>> Is there the limitation of 31 bytes for column names in the new FB 3?
>>> 31 CHARACTERS - as before
>> No, it is 31 byte.
> Correct, the limit is 31 *bytes*. The legacy UNICODE_FSS charset is
> multi-byte (up to three bytes per character) in user-defined tables, but
> it's treated specially for system tables, limiting the length to 31
> bytes, not characters (like it was a single-byte charset). The reasons
> are mainly historical (thanks to Borland) and related to backward
> compatibility of API and GPRE-generated code.
>
> v3 preserves this legacy behaviour. v4 resolves this issue from multiple
> angles:
>
> - switching to UTF8 instead of UNICODE_FSS
> - counting the length in characters instead of bytes
> - increasing the limit to 63 characters (at the moment, may change
> before the final release)
>
>
> Dmitry
>
>
>
>
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--


Atenciosamente,

Hugo Eyng