HI,
Thanks very much,
Because I see EDB's document ECPGplus can parser #ifdef.
so why postgresql community not do that?
I think many PG user need it to adpate some enviroment (like Oracle , pg, db2, ...) in .pgc code.
best regards ,
digoal
--
公益是一辈子的事,I'm Digoal,Just Do It.
At 2016-06-01 21:43:00, "Michael Meskes" <meskes@postgresql.org> wrote:
>> this is my pgc code.
>> ...
>> #ifdef ABC
>> err *abc;
>> #endif
>> ...
>> this is ERROR
>> ecpg -t -c -I/home/digoal/pgsql9.6/include -o t.c t.pgc
>> t.pgc:15: ERROR: unrecognized data type name "err"
>>
>> And use #ifndef and -DABC also error.
>> ECPG parser cann't skip code in #ifdef or #ifndef ?
>
>'#ifdef' is a C precompiler command and thus is only parsed by cpp et
>al. If you want ecpg to parse it you have to use 'exec sql ifdef'
>instead.
>
>Michael
>--
>Michael Meskes
>Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
>Meskes at (Debian|Postgresql) dot Org
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