Hello,
I'm starting to learn programming with libpq.
In the main loop of my code, I will receive some data in the format of an array
of a struct. The data will be inserted to the database, in different lines.
I also need to update the last record in the table before the insertion. So I
plan to write a pl/pgsql function (procedure) to perform the whole updating and
inserting.
But I don't know how to pass the array to the procedure through libpq. It seems
the only way is to using libpq to do updating and inserting separately. Like
this
for(;;) {
/* receive data */
/* libpq updating */
PQexec(...);
PQprepare(...);
for (i=0; i<n; i++) {
/* libpq inserting */
PQexecPrepared()...
}
}
The PQprepare function has to be called in each loop.So my question is that
whether there is a method to pass the array as parameter to libpq?
Best regards,
Xun
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