A_ODBC_MAX_TABLENAME_LEN

Indicates the maximum length of a table name. If not set, set to 0, or out of range, an attempt is made to use the maximum length of a table name in the data source. If it cannot get the value from the data source, it defaults to 31.

Note: For the database to create unique index names, the length of a table name must be two less than the maximum length of a table name in the data source. This is because some databases add one or two characters to the table name to create a unique index name.