If we have default value from the field definition, so we should use it instead of NULL value.
I've attached a patch for reviews
| Attachment | Size | Status | Test result | Operations |
|---|---|---|---|---|
| drupal.field_sql_storage.write-using-default-value.patch | 977 bytes | Idle | PASSED: [[SimpleTest]]: [MySQL] 39,686 pass(es). | View details | Re-test |