Re: Bit strings

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От Bruce Momjian
Тема Re: Bit strings
Дата
Msg-id 200101192229.RAA15189@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: Bit strings  (Peter Eisentraut <peter_e@gmx.net>)
Список pgsql-hackers
OK, I will delete my copy of the email. If there is something to be
added to the TODO list, let me know.

[ People are welcome to modify it themselves too.]

> Bruce Momjian writes:
> 
> > Any idea where we are on this?
> 
> > > Bit and hexstring literals are not handled in a reasonable fashion;
> 
> Bit string literals are handled correctly, although it occurred to me that
> perhaps
> 
> #define IsA_Value(t) \
>          (IsA(t, Integer) || IsA(t, Float) || IsA(t, String))
> 
> should be augmented with BitString.  Can someone advise?
> 
> Hex literals are still not handled correctly.
> 
> > > SQL92 sez we need a position() function for bitstrings.
> 
> We have one now.
> 
> > > Need a regression test for bit types.
> 
> We have one now.
> 
> > > scalarltsel() and friends need to cope with bit/varbit types in
> > > order to make good use of indexes on bitstrings.
> 
> Not done.
> 
> > > pg_dump does not handle BIT/VARBIT lengths properly (pjw may have
> > > fixed this by now).
> 
> Works fine for me.
> 
> -- 
> Peter Eisentraut      peter_e@gmx.net       http://yi.org/peter-e/
> 
> 


--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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