Question

I have a function that updates several tables. As an example, let’s say it does something similar to:

UPDATE foo SET bar = some_value;
UPDATE boo SET far = another_value;

I would like to be able to see how many records are updated in each table. I know that I can display information with a Raise Notice, but don’t know how to get the number of records updated by each statement.

I’m using PostgreSQL 9.1

Answer 1

You need to use:

GET DIAGNOSTICS

For example (in your function):

...
sql := 'UPDATE foo SET bar = some_value';
EXECUTE sql;
GET DIAGNOSTICS rowsAffected = ROW_COUNT;
...

I hope this helps.