[doc] Renaming of part II sub-sections accordingly.
# following functions have been renamed, but keep old definition for bw compatsql('''CREATE AGGREGATE group_concat ( basetype = anyelement, sfunc = array_append, stype = anyarray, finalfunc = comma_join, initcond = '{}')''')sql('''CREATE FUNCTION text_limit_size (fulltext text, maxsize integer) RETURNS text AS $$BEGIN RETURN limit_size(fulltext, 'text/plain', maxsize);END$$ LANGUAGE plpgsql;''')synchronize_rschema('bookmarked_by')