specifying DEFAULT
This was not specific to datetime. When there is no default value
for a column, and the user inserted DEFAULT, we would write
uninitialized memory to the table.
Now, insist on writing a default value, a zero-ish value, the same
one that comes from inserting NULL into a not-NULL field.
(This is, at best, really strange behavior that comes from allowing
sloppy usage, and serves as a good reason always to run one's server
in a strict SQL mode.)
mysql-test/r/default.result:
Verify that all kinds of types work, even others other than datetime.
mysql-test/t/default.test:
Verify that all kinds of types work, even others other than datetime.
sql/item.cc:
Even if we warn that there is no default value in the table definition,
we have to insert /something/.
Moved enabling of warnings to ensure that no warnings are generated
when this test case is executed on a clone where InnoDB is not
activated. This would fail the test case in those clones otherwise.
mysql-test/r/default.result:
Rename: mysql-test/r/bugs.result -> mysql-test/r/default.result
mysql-test/t/default.test:
Moved enabling of warnings to ensure that no warnings are generated
when this test case is executed on a clone where InnoDB is not
activated. This would fail the test case in those clones otherwise.
