function calculate_average_salary(text) does not exist
时间: 2024-04-08 11:31:24 浏览: 15
I apologize for the confusion. It seems that the function `calculate_average` with a `TEXT` parameter does exist. If you are looking to pass a parameter the function, you need to modify the function definition.
Here's an updated example of a stored function `calculate_average_salary` that accepts a parameter of type `` (assuming you want to pass a table name a parameter):
```sql
CREATE OR REPLACE FUNCTION calculate_average(table_name TEXT)
RETURNS NUMERIC
$$
DECLARE
avg_salary NUMERICBEGIN
EXECUTE format('SELECT AVG(s) FROM %I', table_name) INTO avg;
RETURN avg_salary;
END;
$$
LANGUAGE plpgsql;
```
In this modified example, the function takes a table name as the `table_name` parameter. The `EXECUTE` statement is used to dynamically execute the SQL query, allowing us to use the parameter in the query.
To call this function and pass a table name, you can use the following syntax:
```sql
SELECT calculate_average_salary('employees');
```
Please adjust the parameter and function logic as per your specific requirements.