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Re: [bug-recutils] Deprecate recinf ?

From: Michał Masłowski
Subject: Re: [bug-recutils] Deprecate recinf ?
Date: Thu, 09 Aug 2012 12:01:39 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux)

> the SQL language itself has a different syntax, but (at least in the case of
> Postgres) there is no fundamental internal difference between the data and 
> the 
> meta-data.

Frontends like sqlite3 or psql have separate non-SQL commands for
showing table schemas.  This suggests that an user might not look for
the tool for "[s]electing records" to do this.

>      Both tools have largely different implementation and recinf could be
>      easily extended to use an index file without reading any non-descriptor
>      records from the recfile (recsel would need much special-casing to not
>      do a query and use the same code as recinf).
> I'm not familiar with the code, but aren't descriptors just a record set?

A descriptor is a record with the "%rec" field.

> So one could allow the descriptors to be retrieved with a call like
> recsel --type=% <file> 
> or similar.

Now I see that recsel outputting only one record set is a difference.

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