CIMPORT and COMPRESS=YES

[Willempie]

Greetings.

OPTIONS COMPRESS=YES doesn't seem to work with PROC CIMPORT. What I did was:

[1] created an uncompressed SAS-dataset and CPORTed it. Proc DATASETS / CONTENTS shows me that the SAS-dataset is, indeed, uncompressed.
[2] I then deleted the dataset and recreated it with OPTIONS COMPRESS=YES. Works fine. Proc DATASETS /CONTENTS shows me COMPRESS CHAR etc.
[3] Next I CIMPORTed the file from step [1] and I specified OPTIONS COMPRESS=YES in the program.

Much to my surprise proc DATASETS / CONTENTS shows me that the dataset is no longer compressed! Is this how it's supposed to work? Proc CIMPORT undoes my compression? We're running (mainframe) SAS 9.0101M3

TIA

[LinusH]

By reading the documentation, including this SAS note: http://support.sas.com/kb/4/720.html, my guess is that the compression option used when creating the transport file is taking precedence of any options set in the current session.

/Linus

[Willempie]

Linus, I think you're right. I found Usage Note 4720 and, indeed, CPORT preserves the compression-attribute and CIMPORT recreates with whatever info it finds on the transport-file.

How unfortunate.