Supports default value when inserting data.

[killme2008]

What type of enhancement is this?

API improvement

What does the enhancement do?

For example:

CREATE TABLE integers(i BIGINT, time index(i));

INSERT INTO integers values (default);

It should insert the default value null into the table integers.

And if the column has a default constraint, it should use the default value generated by the constraint too.

Implementation challenges

No response