Statements with syntax errors are not logged

When setting log_statement = 'all', statements that fail parsing are not
logged. For example:

LOG: connection received: host=[local]
LOG: connection authorized: user=peter database=peter
LOG: statement: select * from pg_class;
LOG: duration: 19.084 ms
### here a log entry is missing
ERROR: syntax error at or near "foo" at character 1
### The following shows that post-parser errors are handled correctly.
LOG: statement: select * from pg_class where reltype = true;
ERROR: operator does not exist: oid = boolean at character 38
HINT: No operator matches the given name and argument type(s). You may need to add explicit type casts.

Is that intentional?

(This is in 8.1 and 8.2 at least.)

(Yes, I realize there is log_min_error_statement, but that is an orthogonal
feature.)

--
Peter Eisentraut
http://developer.postgresql.org/~petere/