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Subject: Re: Database Field type in db_access.h
From: Michael Davidsaver <mdavidsaver@gmail.com>
To: "Mooney, Tim M." <mooney@aps.anl.gov>
Cc: "core-talk@aps.anl.gov" <core-talk@aps.anl.gov>
Date: Wed, 3 May 2017 12:21:24 -0400
On 05/03/2017 11:45 AM, Mooney, Tim M. wrote:
> re...
> 
>> What I meant to say is that I think that DBF_NO_ACCESS could be removed
>> as it isn't useful.  I suspect that it exists as a historical echo of
>> DBF_NOACCESS in dbAccess.h, which signifies a DB field where the storage
>> can't be directly converted to one of the other DBF_* types (eg TIME in
>> dbCommon.dbd or VAL in waveformRecord.dbd).
> 
> It's useful for autosave.  I need to know if a field whose value is to be restored
> isn't ready to be written to yet (before record init), because its field type hasn't
> been set, or its array space hasn't been allocated. 

Just to be clear, I'm not actually going to remove DBF_NO_ACCESS.  There
is no particular need to have it, but it does no harm either.


References:
Database Field type in db_access.h Jeong Han Lee
Re: Database Field type in db_access.h Michael Davidsaver
Re: Database Field type in db_access.h Jeong Han Lee
Re: Database Field type in db_access.h Michael Davidsaver
RE: Database Field type in db_access.h Mooney, Tim M.

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