Controlling the character case

By default, table and column names are converted to lower case letters to enforce compatibility with IBM® Informix®.

Force lower case, upper case or case-sensitive table and column names by using the -cl, -cu or -cc options.

fgldbsch -db test1 -cc

As a general rule, it is strongly recommended to keep table and column names in lowercase, in all areas (including the objects created in the database entity).