Level check question

I have a project coming up where I need to expand a character field in a physical file but for now I don’t want to increase the field length in any associated logical files. I created a test physical file and test logical with the field length set at the current size, compiled them and looked at the file identifier in the logical and recorded the value. The logical file listed all physical file fields and the logical had blanks for the length so it would use the physical length. I then changed the logical to specify a length that matched the physical like below and compiled the logical and the file identifier did not change (as I expected). I then change the length of LNAME to 50 in the physical and did a CHGPF, recompiled the logical with LNAME at 18. Since the layout of the logical did not change I expected the file identifier to not change but it did. Is this normal behavior ? I was hoping I could do this and not need to recompile a lot of RPG applications that use this logical.

A R PERDTA
A SSID
A LNAME 18
A MNAME
A FNAME
A LFNAME
A LNAMELC
A MNAMELC
A FNAMELC
A LFNAMELC
A ADDR1
A ADDR2
A CITY

Mike Cunningham

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