Configure to use PRE database

[duffee]

Discussion imported from RT (4 emails) https://rt.cpan.org/Public/Bug/Display.html?id=96573

I would like to query the PRE database (instead of the default AST
database) for arXIV papers using:

Astro::ADS::Query
Astro::ADS::Result::Paper
Astro::ADS::Result

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Doug van Orsow (Vantage Systems, Inc.) Bldg 22 Rm 5 Doug.J.vanOrsow@nasa.gov

Hi Doug,

Funny you should ask that. I was given the answer to that just last week.
It's hardcoded in on line 660 of Query.pm
${$self->{OPTIONS}}{"db_key"} = "AST";
I believe PRE will just look at the pre-prints, whereas ALL will search all
databases (it's the one I'm using now).

In any case, I also saw that one-line option of setting the db_key to
AST, so just wondered if it could easily be changed to PRE in order to
access the pre-print ADS archive? Does setting it to ALL actually access
the PRE archive as well, or just other databases of AST?

I would suggest that you change the line from AST to ALL. That will search
the PRE, AST and any other database they have configured.