From: | "Vladimir V(dot) Zolotych" <gsmith(at)eurocom(dot)od(dot)ua> |
---|---|
To: | pgsql-admin(at)postgresql(dot)org |
Subject: | postgres C++ functions |
Date: | 2000-10-04 07:24:22 |
Message-ID: | 0475.001004@eurocom.od.ua |
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Thread: | |
Lists: | pgsql-admin |
Hello all,
Please help me with
create function days_in_month(int4, int4, int4) returns int4
as '/tmp/days.so' language 'c';
Can I write this function days_in_month in C++ ?
I've did the following:
extern "C" {
int days_in_month(int year, int mo, int day);
}
extern "C" {
int days_in_month(int year, int mo, int day) {
═══ return 13;
}
}
Compile with
$ g++ -I/usr/local/qt/include -o days.so -shared days.cpp
then (as user postgres)
my=> create function days_in_month(int4, int4, int4) returns int4
my=> as '/tmp/days.so' language 'c';
CREATE
I've tried to use new function
my=> select days_in_month(3, 3, 3);
ERROR:═ Can't find function days_in_month in file /tmp/days.so
my=>
What is wrong ?
I'm using postgres 6.4 under RedHat.
Any help will be appreciated.
--
Best regards,
Vladimir mailto:gsmith(at)eurocom(dot)od(dot)ua
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