How to check, if a value is an integer with plpgsql?
Taken from archives.postgresql.org:
CREATE FUNCTION isnumeric(text) RETURNS boolean AS 'SELECT $1 ~ ''^[0-9]+$''' LANGUAGE 'sql';
Taken from archives.postgresql.org:
CREATE FUNCTION isnumeric(text) RETURNS boolean AS 'SELECT $1 ~ ''^[0-9]+$''' LANGUAGE 'sql';