Re: [HACKERS] Current sources?
| От | David Hartwig | 
|---|---|
| Тема | Re: [HACKERS] Current sources? | 
| Дата | |
| Msg-id | 356B0D74.71A9686C@insightdist.com обсуждение исходный текст | 
| Ответ на | Re: [HACKERS] Current sources? (Bruce Momjian <maillist@candle.pha.pa.us>) | 
| Ответы | Re: [HACKERS] Current sources? | 
| Список | pgsql-hackers | 
Bruce Momjian wrote:
> I was wondering, should the patch be:
>
>         if (j->jf_cleanTupType)
>             tupType = j->jf_cleanTupType;
> rather than my current:
>
>         if (operation == CMD_SELECT)
>             tupType = j->jf_cleanTupType;
>
> Not sure.
>
The second option (your earlier suggestion) seems to be necessary and sufficient.   The junk filter (and
jf_cleanTupType) will always exist, for SELECT statements, as long as the following is not a legal statement:
        SELECT   FROM foo GROUP BY bar;
Currently the parser will not accept it.  Sufficient.
The first option will set tupType, for non-SELECT statements, to something it otherwise may not have been.
I would rather not risk effecting those calling routines which are not executing a SELECT command.  At this
time, I do not understand them enough, and I see no benefit.   Necessary?
		
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