Re: ecpg enhance patch

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От Bruce Momjian
Тема Re: ecpg enhance patch
Дата
Msg-id 200010021600.MAA21537@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: ecpg enhance patch  (SAKAIDA Masaaki <sakaida@psn.co.jp>)
Ответы Re: ecpg enhance patch  (Michael Meskes <meskes@postgreSQL.org>)
Список pgsql-hackers
I have committed this patch.  It offers a speed up to ecpg.


> 
> Michael Meskes <meskes@postgresql.org> wrote:
> 
> > On Sat, Jun 03, 2000 at 11:22:19AM +0900, SAKAIDA Masaaki wrote:
> > > The following patch could solve the next error cases in 6.5.3-ecpglib.
> > > 
> > > case 1.
> > >    strcpy(str, "T''EST'TEST");
> > >    exec sql insert into ecpg_test values ( 11, :str, 'kobe' ) ;
> > >    
> > >    error(-201)(Too many arguments line 1025.
> > > 
> > > case 2. 
> > >    str( str, "T'''?'ESTTEST");
> > >    exec sql insert into ecpg_test values ( 11, :str, 'kobe' ) ;
> > > 
> > >    error(-202)(Too few arguments line 1024.)   
> > > 
> > > 
> > > However, these problems seems to be solved in 7.0-ecpglib.
> > 
> > So that means the patch is not needed anymore?
> 
> In the meaning of bug-fix, the patch is not needed. Because you 
> have already modified "next_insert()" in 7.0-ecpglib.  However 
> in the meaning of speed-up, the patch will be needed.
> --
> Regards,
> SAKAIDA Masaaki  -- Osaka, Japan
> 
> 
> *** postgresql-7.0.1/src/interfaces/ecpg/lib/execute.c.orig    Tue Jun
> 6 15:02:34 2000
> --- postgresql-7.0.1/src/interfaces/ecpg/lib/execute.c    Tue Jun  6 15:02:05 2000
> ***************
> *** 278,283 ****
> --- 278,284 ----
>           char       *tobeinserted = NULL;
>           char       *p;
>           char        buff[20];
> +         int        hostvarl = 0;
>   
>           /*
>            * Some special treatment is needed for records since we want
> ***************
> *** 559,565 ****
>               return false;
>   
>           strcpy(newcopy, copiedquery);
> !         if ((p = next_insert(newcopy)) == NULL)
>           {
>   
>               /*
> --- 560,566 ----
>               return false;
>   
>           strcpy(newcopy, copiedquery);
> !         if ((p = next_insert(newcopy + hostvarl)) == NULL)
>           {
>   
>               /*
> ***************
> *** 572,577 ****
> --- 573,579 ----
>           else
>           {
>               strcpy(p, tobeinserted);
> +             hostvarl = strlen(newcopy);
>   
>               /*
>                * The strange thing in the second argument is the rest of the
> 
> 
> 
> 


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