plpgsql, variable inside query in function

Question

I am new with plpgsql. I create new function

CREATE OR REPLACE FUNCTION createObj(number integer)
RETURNS INTEGER AS
$$
BEGIN
END;
$$

I have problem that if I want to make query in the body of the function and use in the query the the number variable while in the table their is a number the boolean is always true.

something like:

 Select * from objects O, where O.number=number...

so number is not the number of the function but the filed in the table. Their is a way to implement this and dont change the variable name?

Answer 1

Define your parameters with a prefix to distinguish them from columns:

CREATE OR REPLACE FUNCTION createObj(in_number integer)
RETURNS INTEGER AS
$$
BEGIN
 Select * from
 objects O
 where O.number = in_number...
END;
$$

• user5303752: thanks, I though that their is a way to take the original variable.. Thanks anyway .
• Gordon Linoff: @Alon . . . You can use 1ドル. I think it is just a good habit to use parameter and variable names that can't be confused with other things.