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Subject: Re: [PATCHES] SET DateStyle patches
On Tue, 22 Apr 1997, Thomas Lockhart wrote:
> Some more patches! These (try to) finish implementing SET variable TO value
> for "DateStyle" (changed the name from simply "date" to be more descriptive).
> This is based on code from Martin and Bruce (?), which was easy to modify.
> The syntax is
>
> SET DateStyle TO 'iso'
> SET DateStyle TO 'postgres'
> SET DateStyle TO 'sql'
> SET DateStyle TO 'european'
> SET DateStyle TO 'noneuropean'
> SET DateStyle TO 'us' (same as "noneuropean")
> SET DateStyle TO 'default' (current same as "postgres,us")
>
> ("european" is just compared for the first 4 characters, and "noneuropean"
> is compared for the first 7 to allow less typing).
>
> Multiple arguments are allowed, so SET datestyle TO 'sql,euro' is valid.
>
> My mods also try to implement "SHOW variable" and "RESET variable", but
> that part just core dumps at the moment. I would guess that my errors
> are obvious to someone who knows what they are doing with the parser stuff,
> so if someone (Bruce and/or Martin??) could have it do the right thing
> we will have a more complete set of what we need.
>
> Also, I would like to have a floating point precision global variable to
> implement "SET precision TO 10" and perhaps "SET precision TO 10,2" for
> float8 and float4, but I don't know how to do that for integer types rather
> than strings. If someone is fixing the SHOW and RESET code, perhaps they can
> add some hooks for me to do the floats while they are at it.
>
> I've left some remnants of variable structures in the source code which
> I did not use in the interests of getting something working for v6.1.
> We'll have time to clean things up for the next release...
85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
/*
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* Headers for handling of SET var TO statements
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*
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* $Id: variable.h,v 1.3 1997/04/23 03:17:52 scrappy Exp $
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*
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* $Log: variable.h,v $
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* Revision 1.3 1997/04/23 03:17:52 scrappy
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* To: Thomas Lockhart <Thomas.G.Lockhart@jpl.nasa.gov>
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* Subject: Re: [PATCHES] SET DateStyle patches
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*
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* On Tue, 22 Apr 1997, Thomas Lockhart wrote:
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*
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* > Some more patches! These (try to) finish implementing SET variable TO value
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* > for "DateStyle" (changed the name from simply "date" to be more descriptive).
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* > This is based on code from Martin and Bruce (?), which was easy to modify.
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* > The syntax is
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* >
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* > SET DateStyle TO 'iso'
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* > SET DateStyle TO 'postgres'
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* > SET DateStyle TO 'sql'
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* > SET DateStyle TO 'european'
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* > SET DateStyle TO 'noneuropean'
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* > SET DateStyle TO 'us' (same as "noneuropean")
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* > SET DateStyle TO 'default' (current same as "postgres,us")
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* >
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* > ("european" is just compared for the first 4 characters, and "noneuropean"
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* > is compared for the first 7 to allow less typing).
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* >
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* > Multiple arguments are allowed, so SET datestyle TO 'sql,euro' is valid.
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* >
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* > My mods also try to implement "SHOW variable" and "RESET variable", but
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* > that part just core dumps at the moment. I would guess that my errors
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* > are obvious to someone who knows what they are doing with the parser stuff,
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* > so if someone (Bruce and/or Martin??) could have it do the right thing
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* > we will have a more complete set of what we need.
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* >
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* > Also, I would like to have a floating point precision global variable to
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* > implement "SET precision TO 10" and perhaps "SET precision TO 10,2" for
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* > float8 and float4, but I don't know how to do that for integer types rather
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* > than strings. If someone is fixing the SHOW and RESET code, perhaps they can
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* > add some hooks for me to do the floats while they are at it.
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* >
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* > I've left some remnants of variable structures in the source code which
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* > I did not use in the interests of getting something working for v6.1.
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* > We'll have time to clean things up for the next release...
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*
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* Revision 1.2 1997/04/17 13:50:57 scrappy
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* From: "Martin J. Laubach" <mjl@CSlab.tuwien.ac.at>
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* Subject: [HACKERS] Patch: set date to euro/us postgres/iso/sql
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*
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* Here a patch that implements a SET date for use by the datetime
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* stuff. The syntax is
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*
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* SET date TO 'val[,val,...]'
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*
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* where val is us (us dates), euro (european dates), postgres,
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* iso or sql.
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*
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* Thomas is working on the integration in his datetime module.
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* I just needed to get the patch out before it went stale :)
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*
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* Revision 1.1 1997/04/10 16:53:30 mjl
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* Initial revision
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*
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*/
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/*-----------------------------------------------------------------------*/
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enum DateFormat { Date_Postgres, Date_SQL, Date_ISO };
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/*-----------------------------------------------------------------------*/
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struct PGVariables
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{
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struct
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{
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bool euro;
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enum DateFormat format;
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} date;
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};
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extern struct PGVariables PGVariables;
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/*-----------------------------------------------------------------------*/
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bool SetPGVariable(const char *, const char *);
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bool GetPGVariable(const char *);
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bool ResetPGVariable(const char *);
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