PREIMAGE Tables in c-treeACE SQL

A performance gain can be obtained in some situations by avoiding transaction logging of files, thereby foregoing the protection of recovery. With c-treeACE ISAM it is possible to create files with such a transaction mode using ctPREIMG as the file mode. This support is now extended to c-treeACE SQL Tables as an option when they are created. The additional option, 'PREIMG', has been added to the c-treeACE SQL keyword STORAGE_ATTRIBUTES.