Re: Help solve an argument: Reading a SQL index in RPG?

On Mon, Feb 22, 2016 at 9:22 AM, <rob@xxxxxxxxx> wrote:

<snip>
But the LF backing the index won't necessarily get the new columns
added. I don't know the exact pattern, but when you do an ALTER TABLE
to add a column to the table, the LF doesn't always get that column
added.
</snip>

And that's a GOOD thing!
Again, if I do an ALTER TABLE ERPLXF.RCO ADD COLUMN
and add any column from this
http://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_72/db2/rbafzgvars.htm?lang=en-us
I may not automatically want them showing up in the logical files because
then I would have to recompile all RPG programs that use RLA to access
those logical files.

Actually, it's not a good thing ... because it's inconsistent.

SOMETIMES (and, again, I don't know the pattern), when you do an ALTER
TABLE, the index is updated with new columns added and sometimes it's
not.

Plus, there's no way to specify what columns are included in the LF
that backs the index.

If this were a keyed view, or a standard LF, we could specify what
fields are included in the LF.

Rob