Thread: Compilate problems

I am working actually in an replication project. I need a trigger function but when I compile this, the C compilator
returnthe log message: 

# cc -fpic -c main.c
In file included from /usr/include/postgresql/postgres.h:49,
                 from main.c:1:
/usr/include/postgresql/utils/elog.h:68:28: error: utils/errcodes.h: The file or directory does not exist
In file included from /usr/include/postgresql/8.3/server/funcapi.h:20,
                 from main.c:2:
/usr/include/postgresql/8.3/server/access/tupdesc.h:17:27: error: access/attnum.h: The file or directory does not exist
/usr/include/postgresql/8.3/server/access/tupdesc.h:18:34: error: catalog/pg_attribute.h: The file or directory does
notexist 
/usr/include/postgresql/8.3/server/access/tupdesc.h:19:27: error: nodes/pg_list.h: No existe The file or directory does
notexist 
In file included from /usr/include/postgresql/8.3/server/funcapi.h:20,
                 from main.c:2:
/usr/include/postgresql/8.3/server/access/tupdesc.h:24: error: expected specifier-qualifier-list before ‘AttrNumber’
/usr/include/postgresql/8.3/server/access/tupdesc.h:72: error: expected specifier-qualifier-list before
‘Form_pg_attribute’
/usr/include/postgresql/8.3/server/access/tupdesc.h:85: error: expected declaration specifiers or ‘...’ before
‘Form_pg_attribute’
.................

But the files exists in the indicated locations, any idea??
My plataform is Debian GNU/Linux, the headers files of postgresql-server-dev-8.3 are under
/usr/include/postgresql/8.3/server/,my haders files are: 

#include <postgresql/8.3/server/postgres.h>
#include <postgresql/8.3/server/executor/spi.h>
#include <postgresql/8.3/server/commands/trigger.h>

Yadisnel Galvez Velazquez wrote:
> I am working actually in an replication project. I need a trigger function but when I compile this, the C compilator
returnthe log message: 
>
> # cc -fpic -c main.c

You're missing some -I directives (among other things).  I suggest you
compile this way:

cc $(pg_config --cflags) -I$(pg_config --includedir)/server -c main.c

You need pg_config to be in PATH for this to work.

PS: I suggest you use the pgsql-es-ayuda list for spanish help.  There's
people from @uci.cu there too.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

On Sun, Oct 04, 2009 at 01:07:54PM -0400, Yadisnel Galvez Velazquez wrote:
> The problem is identical if I run this example:

Please attach files instead of posting them in-line :)  I've attached
your example as a file.

Please also to group-reply instead of just replying to the poster.

Cheers,
David
--
David Fetter <david@fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fetter@gmail.com

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The problem is identical if I run this example:

#include <postgresql/8.3/server/postgres.h>
#include <postgresql/8.3/server/executor/spi.h>
#include <postgresql/8.3/server/commands/trigger.h>

extern Datum trigf(PG_FUNCTION_ARGS);

PG_FUNCTION_INFO_V1(trigf);

Datum
trigf(PG_FUNCTION_ARGS)
{
    TriggerData *trigdata = (TriggerData *) fcinfo->context;
    TupleDesc   tupdesc;
    HeapTuple   rettuple;
    char       *when;
    bool        checknull = false;
    bool        isnull;
    int         ret, i;

    /* make sure it's called as a trigger at all */
    if (!CALLED_AS_TRIGGER(fcinfo))
        elog(ERROR, "trigf: not called by trigger manager");

    /* tuple to return to executor */
    if (TRIGGER_FIRED_BY_UPDATE(trigdata->tg_event))
        rettuple = trigdata->tg_newtuple;
    else
        rettuple = trigdata->tg_trigtuple;

    /* check for null values */
    if (!TRIGGER_FIRED_BY_DELETE(trigdata->tg_event)
        && TRIGGER_FIRED_BEFORE(trigdata->tg_event))
        checknull = true;

    if (TRIGGER_FIRED_BEFORE(trigdata->tg_event))
        when = "before";
    else
        when = "after ";

    tupdesc = trigdata->tg_relation->rd_att;

    /* connect to SPI manager */
    if ((ret = SPI_connect()) < 0)
        elog(INFO, "trigf (fired %s): SPI_connect returned %d", when, ret);

    /* get number of rows in table */
    ret = SPI_exec("SELECT count(*) FROM ttest", 0);

    if (ret < 0)
        elog(NOTICE, "trigf (fired %s): SPI_exec returned %d", when, ret);

    /* count(*) returns int8, so be careful to convert */
    i = DatumGetInt64(SPI_getbinval(SPI_tuptable->vals[0],
                                    SPI_tuptable->tupdesc,
                                    1,
                                    &isnull));

    elog (INFO, "trigf (fired %s): there are %d rows in ttest", when, i);

    SPI_finish();

    if (checknull)
    {
        SPI_getbinval(rettuple, tupdesc, 1, &isnull);
        if (isnull)
            rettuple = NULL;
    }

    return PointerGetDatum(rettuple);
}