Dolt doesn't update last_insert_id() when DEFAULT is used

[fulghum]

In MySQL, when the DEFAULT value is used to insert into an auto_increment column, the last insert auto increment value is recorded and accessible through last_insert_id(). Dolt does not currently detect this as an auto_increment insert.

MySQL Behavior

mysql> create table t (pk int auto_increment primary key);
Query OK, 0 rows affected (0.01 sec)

mysql> insert into t values (DEFAULT);
Query OK, 1 row affected (0.01 sec)

mysql> select last_insert_id();
+------------------+
| last_insert_id() |
+------------------+
|                1 |
+------------------+
1 row in set (0.00 sec)

Dolt Behavior

mar4/main> create table t (pk int auto_increment primary key);
mar4/main*> insert into t values (DEFAULT);
Query OK, 1 row affected (0.00 sec)
mar4/main*> select last_insert_id();
+------------------+
| last_insert_id() |
+------------------+
| 0                |
+------------------+
1 row in set (0.00 sec)