2015-09-16 2:41 GMT+02:00 Peter Eisentraut <[email protected]>:
> On 9/11/15 6:25 AM, Pavel Stehule wrote:
> > new update of parse_ident function patch
>
> How would you actually use this?
>
> I know several people have spoken up that they could use this, but could
> you provide a few actual practical examples?
>
>
I see two basic use cases
1. processing user input with little bit more comfort - the user doesn't
need to separate schema and table
CREATE OR REPLACE FUNCTION createtable(tablename text)
RETURNS void AS $$
DECLARE names text[];
BEGIN
names := parse_ident(tablename);
IF array_length(names) > 2 || array_length(names) = 0 THEN
RAISE EXCEPTION 'wrong identifier';
END IF;
IF names[2] IS NOT NULL THEN
CREATE SCHEMA IF NOT EXISTS names[2];
END IF;
CREATE TABLE tablename;
END;
$$ LANGUAGE plpgsql;
2. parsing error messages or some automatic variables
Regards
Pavel
