Convert all records in postgres to Titlecase, first letter uppercase

Question

I have a simple table in PostgreSQL called keywords with a simple text field called name. I want to convert all names of keywords in first letter uppercase. Is there a way t

Answer 1

The initcap function capitalizes letters after special characters (dashes, apostrophes, etc). I only want to capitalize after a space.

Similar to Denis' answer, this function will convert the first letter of every word (separated by a space)

CREATE OR REPLACE FUNCTION titlecase(instr varchar) RETURNS varchar AS $$
DECLARE
  strarray varchar[] := string_to_array(inStr, ' ');
  outstrarray varchar[];
  word varchar;
BEGIN
  FOREACH word IN ARRAY strarray
  LOOP
    outstrarray := array_append(outstrarray, (upper(left(word,1))::varchar || 
lower(right(word,-1))::varchar)::varchar);
  END LOOP;
  RETURN array_to_string(outstrarray,' ','');
END;
$$ LANGUAGE 'plpgsql';