fix: 'unsupported command' everywhere

[cadl]

Signed-off-by: cadl ctrlaltdeleteliu@gmail.com

After #662, the internal command does not work. Make some fixes.

before:

> \dt
? ;
Internal error: unsupported command
> \dt;
Internal error: unsupported command
>

after:

> \dt
+---+----------+---+------------+---+--------------+
| 0 | postgres | 1 | pg_catalog | 0 | contributors |
+---+----------+---+------------+---+--------------+
in 0.001s
> select * from foo;
bind error: invalid table foo
> select *
? from foo;
bind error: invalid table foo

[TennyZhuang]

Thanks!

[skyzh]

Thanks! In fact, I think \dt should always work without ;. That is to say, if a line begins with \, then the cli should immediately execute it on new line instead of waiting for ;. If you're interested, you may submit another PR to fix the behavior.

[cadl]

Thanks! In fact, I think \dt should always work without ;. That is to say, if a line begins with \, then the cli should immediately execute it on new line instead of waiting for ;. If you're interested, you may submit another PR to fix the behavior.

yes, \dt works like you say now. As the example in the PR description

> \dt
+---+----------+---+------------+---+--------------+
| 0 | postgres | 1 | pg_catalog | 0 | contributors |
+---+----------+---+------------+---+--------------+
in 0.001s

[skyzh]

That's cool, thanks!