Add references chapter and lax-book-fr but this is temporary, until content is sorted.
# following functions have been renamed, but keep old definition for bw compat
sql('''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')