Delete statement not supported in metric engine

[killme2008]

What type of bug is this?

Unexpected error

What subsystems are affected?

Table Engine

Minimal reproduce step

Can't delete data from logical tables or physical table:

delete from up;
delete from greptime_physical_table;

Both report errors as:

Unsupported region request: Delete

What did you expect to see?

Unsupported region request: Delete

What did you see instead?

Execute successfully.

What operating system did you use?

all

What version of GreptimeDB did you use?

0.9.2

Relevant log output and stack trace

No response