1997-04-17 13:50:57 +00:00
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/*
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1997-04-23 05:52:32 +00:00
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* Headers for handling of 'SET var TO', 'SHOW var' and 'RESET var'
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* statements
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1997-04-17 13:50:57 +00:00
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*
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1997-04-23 05:52:32 +00:00
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* $Id: variable.h,v 1.4 1997/04/23 05:52:32 vadim Exp $
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1997-04-17 13:50:57 +00:00
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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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To: Thomas Lockhart <Thomas.G.Lockhart@jpl.nasa.gov>
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...
1997-04-23 03:18:27 +00:00
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bool GetPGVariable(const char *);
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bool ResetPGVariable(const char *);
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