I'm coming from a Pro*C background so I'm not entirely
certain whether what I am attempting is simply not
allowed in ecpg or not.
ecpg --version
ecpg (PostgreSQL 7.4.1) 3.1.0
showbug.pgc
------------------------------------------
#define HOSTSIZE 100
exec sql begin declare section;
typedef struct _my_host_t {
char field1[HOSTSIZE][20];
int field2[HOSTSIZE];
} _my_host_ary_t;
typedef struct _my_host_ind_t {
int field1_ind[HOSTSIZE];
int field2_ind[HOSTSIZE];
} _my_host_ind_ary_t;
exec sql end declare section;
exec sql declare my_cur cursor for select field1,
field2 from sometable;
int main()
{
exec sql begin declare section;
_my_host_ary_t *mydata;
_my_host_ind_ary_t *myind;
int fetchsize;
exec sql end declare section;
fetchsize = HOSTSIZE;
exec sql fetch :fetchsize from my_cur into :mydata
INDICATOR :myind;
}
------------------------------------------
After running ecpg -o showbug.c showbug.pgc the
section of interest in the generated .c file is:
showbug.c
------------------------------------------
/* Processed by ecpg (3.1.0) */
[...]
int main()
{
/* exec sql begin declare section */
[...]
{ ECPGdo(__LINE__, 0, 1, NULL, "fetch ? from
my_cur",
ECPGt_int,&(vArySize),(long)1,(long)1,sizeof(int),
ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L,
ECPGt_EOIT,
ECPGt_char,(mydata->field1),(long)20,(long)HOSTSIZE,20*sizeof(char),
ECPGt_int,(mydata->field1_ind),(long)1,(long)HOSTSIZE,sizeof(int),
ECPGt_int,(mydata->field2),(long)1,(long)HOSTSIZE,sizeof(int),
ECPGt_int,(mydata->field2_ind),(long)1,(long)HOSTSIZE,sizeof(int),
ECPGt_EORT);}
[...]
}
You can see that ecpg incorrectly mapped the indicator
fields field1_ind and field2_ind to the mydata struct
instead of myind which will cause a compile error.
Regards,
Shelby Cain
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