Small parser bug?

Should the parser not croak?

test=# select TIME '12:34:56.1.2.1.2.aaa a;foo';
?column?
----------
12:34:56
(1 row)

like this

test=# select TIME '12:34:56.1.a.2';
ERROR: Bad time external representation '12:34:56.1.a.2'

--- Allan.