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Problem with the astron database on Mac OS X [message #78777] Tue, 20 December 2011 17:20 Go to next message
rklein is currently offline  rklein
Messages: 5
Registered: June 2009
Junior Member
Hi,

I am using the database routines from the IDL Astronomy User's
library: (http://idlastro.gsfc.nasa.gov/contents.html#C3) on Mac OS X,
IDL version 7.1.

The following happens when I try to open two linked databases (the
yale_bs and yale_bs_rmks databases are available at
http://idlastro.gsfc.nasa.gov/ftp/zdbase/):

IDL> astrolib
% Compiled module: ASTROLIB.
% ASTROLIB: Astronomy Library system variables have been added
IDL> dbopen,'yale_bs_rmks,yale_bs'
% Compiled module: DBOPEN.
% Compiled module: ZPARCHECK.
% Compiled module: STRSPLIT.
% Compiled module: DBCLOSE.
% Compiled module: FIND_WITH_DEF.
% Compiled module: FIND_ALL_DIR.
% Compiled module: BREAK_PATH.
Attempt to subscript SBYTE with I is out of range.
IDL> dbhelp
% Compiled module: DBHELP.
% Compiled module: DB_INFO.
% Compiled module: TEXTOPEN.
% Compiled module: FILEPATH.
% Compiled module: DB_ITEM_INFO.
ENTRY HR CATEGORY REMARKS SPARES

------- Indexed Items ------
HR

----- Pointer Information ----
YALE_BS_RMKS.HR ---> YALE_BS

data base contains 9188 entries
% Compiled module: TEXTCLOSE.
IDL>

As you can see, only one is opened despite the two being linked.

I also noticed that using "/EXTERNAL" with dbcreate does not work on
Mac OS.

Does anyone has an idea what is going wrong. Is it an IDL bug on Mac
OS which treats binary files unexpectedly? Or is there an invalid
assumption in the database code?

Thanks and happy holidays.
Randolf
Re: Problem with the astron database on Mac OS X [message #78827 is a reply to message #78777] Thu, 22 December 2011 11:00 Go to previous message
rklein is currently offline  rklein
Messages: 5
Registered: June 2009
Junior Member
On Dec 21, 5:40 pm, wlandsman <wlands...@gmail.com> wrote:
> On Wednesday, December 21, 2011 4:13:34 PM UTC-5, rklein wrote:
>> I update the library and the problems seems to be gone. But, let me
>> investigate further.
>> Randolf
>
> I had fixed a problem with linked databases in dbprint.pro yesterday.   But note the following:
Thanks, I will update my routines
>
> 1.  The "linked databases" feature has not been used much, and I suspect that most of the remaining bug in the database software relate to linked databases.
I'll let you know if I have more problems.
> 2.  I suspect that you are using YALE_BS catalog as a test database.    I wouldn't recommend this 20 year old catalog now for most actual science.
True, I only used it here so that people can easily try to reproduce
my problem.

Thank you,
Randolf
Re: Problem with the astron database on Mac OS X [message #78840 is a reply to message #78777] Wed, 21 December 2011 17:40 Go to previous message
wlandsman is currently offline  wlandsman
Messages: 743
Registered: June 2000
Senior Member
On Wednesday, December 21, 2011 4:13:34 PM UTC-5, rklein wrote:
> I update the library and the problems seems to be gone. But, let me
> investigate further.
> Randolf

I had fixed a problem with linked databases in dbprint.pro yesterday. But note the following:

1. The "linked databases" feature has not been used much, and I suspect that most of the remaining bug in the database software relate to linked databases.
2. I suspect that you are using YALE_BS catalog as a test database. I wouldn't recommend this 20 year old catalog now for most actual science.
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