Reporting Wide Character Columns

Informix servers do not support wide character data types. When an application sets the Report Char Columns as Wide Char Columns option, the driver sets the following behavior:

• SQLDescribeCol reports char columns as wide char columns
• SQL_CHAR column is reported as SQL_WCHAR
• SQL_VARCHAR column is reported as SQL_WVARCHAR
• SQL_LONGVARCHAR column is reported as SQL_WLONGVARCHAR
• The default is 0: (disabled)

After setting the Report Char Columns as Wide Char Columns option, calls to SQLBindParameter with SQL data types have the following behavior:

• SQL_WCHAR is mapped to SQL_CHAR
• SQL_WVARCHAR is mapped to SQL_VARCHAR
• SQL_WLONGVARCHAR is mapped to SQL_LONGVARCHAR