• Create and drop model statements are not supported by Open SQL.

• Procedures and models cannot have the same name.

• No support on Windows port for 12.1.

• Grants are not supported for models.

• Delimited names are not supported with models.

• Cannot support a model with an unsigned integer type.

• When “x100_delay_txn_start” parameter is set to ON (the default), model statements do not trigger X100 startup. If X100 has not already started, a transaction beginning with a CREATE MODEL statement or a model query against a heap table will fail because the first statement must be an X100 statement. As a workaround, create an empty X100 dummy table as the transaction’s first statement.