Wildcard expressions in a filename can be used in the data import scenario, where data is loaded into a database. Wildcard characters in a filename can be specified by setting "S3SinglePartFile=True" and simultaneously using the wildcard characters * or ? in the S3Prefix name or S3Object name.
S3 Objects are selected using the same rules as in the Unix shell. Filenames matching the wildcard file specifications are added in the job log, and data from each file whose name matches the wildcard expressions are loaded into the the database table.
Wildcard expressions that match a "/" in the object name with a wildcard character will be skipped. For example, '/ab*' will not match '/abc/xyz'. You can enter /alph*/* to match /alphabet/a, /alphabet/b, etc. This is the same behavior that you would expect from GLOB during shell filename expansion.
S3Prefix and S3Object are concatenated before expansion. Wildcard characters can appear in either. Wildcards which do not match any files will show the correct pattern in the error response.