macro_rules! warning {
($($arg:tt)*) => { ... };
}
Expand description
Log to Postgres’ warning
log level.
This macro accepts arguments like the println
and format
macros.
See fmt
for information about options.
Given some function:
use pgx::*;
#[pg_extern]
fn sum_array(input: Array<i32>) -> i64 {
let mut sum = 0 as i64;
for i in input {
pgx::warning!("i={index:?}, sum={}", sum, index = i);
sum += i.unwrap_or(-1) as i64;
}
sum
}
When run inside PostgreSQL would output:
arrays=# SELECT arrays.sum_array('{1,2,3}');
WARNING: i=Some(1), sum=0
WARNING: i=Some(2), sum=1
WARNING: i=Some(3), sum=3
sum_array
-----------
6
(1 row)