* The following limits exist for the Informix-SE file system:Maximum indexed key size 120 bytes Maximum number of fields per key 8
* The following limits exist for the Informix-OnLine file system:
Maximum indexed key size 256 bytes Maximum number of fields per key 16
* With the Acu4GL interface for Informix, only one database can be open at a time. Within this one database, a maximum of 100 tables can be open at the same time. You can set this table maximum to a lower number via the runtime configuration variable MAX-CURSORS.
* The following Informix data types are not currently supported:
INTERVAL
DATETIME
BLOB
FLOAT
SMALLFLOAT
* Acu4GL for Informix supports the following data types; conversions between COBOL and database formats are as shown:
* Opening a file I-O exclusive doesn't hold lock on Informix. This is a limitation on the way the Informix interface works. Since we do not do any actual operations on the table except to get information about it, Informix does not tell us the file is locked. Users should get a lock condition when they do a read with lock.
Performing error handling on the read/write will yield a 99 record locked on any read operation performed - even if the file is open for input.
* Other limits are described in Appendix B of the ACUCOBOL-GT documentation.