nkulikov infocenter

Николай, а ведь по эттой ссылке приводится немного не та информация :)
Там строчкой выше таблицы написано:
"Informix and DB2 name length limits are different. The following table shows the maximum lengths for DB2 object names."
Для версии 9.4 нужно смотреть "IBM Informix Guide to SQL. Syntax" раздел
"Identifier" (стр.4-189)
An identifier specifies the simple name of a database object, such as a column,
table, index, or view . ....
An identifier can contain up to 128 bytes, inclusive . For example, the
following table name is valid: employee_information.
If you are using a multibyte code set, keep in mind that the maximum length
of an identifier refers to the number of bytes, not the number of characters.
For letter characters in nondefault locales, see “Support for Non-ASCII
Characters in Identifiers” on page 4-191. For further information on the GLS
aspects of identifiers, see the IBM Informix GLS User’s Guide. ♦
The database server checks the internal version number of the client application
and the setting of the IFX_LONGID environment variable to determine
whether a client application supports long identifiers (up to 128 bytes in
length). For more information, see the IBM Informix Guide to SQL: Reference"
ну и т.д.