constraint name dropped

[zachmu]

Dolt drops the names of unique constraints and chooses its own name based on the columns.

dolt sql
# Welcome to the DoltSQL shell.
# Statements must be terminated with ';'.
# "exit" or "quit" (or Ctrl-D) to exit.
new> create table t4 (a int primary key, b int not null default 1, c int not null default 2) ;
new> alter table t4 add constraint t4_bc_unique unique (b,c);
new> show create table t4;
+-------+------------------------------------------------------------------+
| Table | Create Table                                                     |
+-------+------------------------------------------------------------------+
| t4    | CREATE TABLE `t4` (                                              |
|       |   `a` int NOT NULL,                                              |
|       |   `b` int NOT NULL DEFAULT (1),                                  |
|       |   `c` int NOT NULL DEFAULT (2),                                  |
|       |   PRIMARY KEY (`a`),                                             |
|       |   UNIQUE KEY `bc` (`b`,`c`)                                      |
|       | ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_bin |
+-------+------------------------------------------------------------------+
1 row in set (0.00 sec)

[jycor]

fix for this is merged, and will make it to dolt main eventually