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Status Not under consideration
Workspace AIX
Created by Guest
Created on Feb 11, 2021

RELATED IDEAS

Informix ESQL/C ifx_var_getdata() should do charset conversion when binding with CLVCHARPTRTYPE

Sorry for the IBM AIX product name but this is about IBM/HCL Informix and I can't find the product name in the list...

Platforms: Linux Debian 10.7 or Windows 10
Informix server: IDS-14.10.FC5
Informix client: CSDK 4.50.FC5
DB_LOCALE = en_us.utf8
CLIENT_LOCALE = en_us.8859-15 (Linux) / en_us.1252 (Windows)

When fetching an LVARCHAR column, and binding the fetch handler with ifx_sqlvar_t sqltype=CLVCHARPTRTYPE, after the fetch we want to get the character string with ifx_var_getdata().

But it appears that the sequence of bytes returned by the ifx_var_getdata() function is pure UTF-8, and is not converted to ISO-8859-15 ...

Documentation says that this function returns ASCII data ... we assume that no conversion is done at all and it returns just the UTF-8 byte sequence.

The string should be converted to the charset of CLIENT_LOCALE, just as when binding with CVCHARTYPE.

https://informix.hcldoc.com/14.10/help/index.jsp?topic=%2Fcom.ibm.esqlc.doc%2Fids_esqlc_0007.htm

"..The lvarchar pointer type is not equivalent to a C-language char pointer. Informix® ESQL/C maintains its own internal representation for the lvarchar pointer type. This representation is identical to the representation of a var binary host variable, except that it supports ASCII data as opposed to binary data..."

Idea priority Medium
  • Guest
    Reply
    |     Feb 22, 2021

    This should be pursued via the IBM Data and AI Ideas Portal for Clients for Informix as per the link in the previous comment.

  • Guest
    Reply
    |     Feb 12, 2021

    looks like the same request as submitted here:
    https://ibm-data-and-ai.ideas.aha.io/ideas/INFX-I-400

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