fix(mysql): quote database name in CREATE DATABASE statement

[dakraus]

In order to allow the full Unicode Basic Multilingual Plane,
the database name is now quoted in the CREATE DATABASE statement.

fixes #148

[brandond]

Thank you for the contribution! Would you mind also fixing this for the other drivers as well?

[dakraus]

Sure @brandond, I will check the other drivers to see if we this fix is needed elsewhere.

[dakraus]

@brandond I added another commit to fix this for the PostgreSQL driver. However this also means that the database names for the PostgreSQL driver are now case-sensitive according to the official documentation:

Quoting an identifier also makes it case-sensitive, whereas unquoted names are always folded to lower case.

Another thing I noticed while running the tests locally: The CREATE DATABASE statement is never executed for CockroachDB and kine fails during the schema creation with if you configure a non-existing database in the KINE_ENDPOINT

[cockroachdb-v20.2] time="2022-11-29T12:51:42Z" level=info msg="starting metrics server path /metrics"
[cockroachdb-v20.2] time="2022-11-29T12:51:42Z" level=info msg="Configuring postgres database connection pooling: maxIdleConns=2, maxOpenConns=0, connMaxLifetime=0s"
[cockroachdb-v20.2] time="2022-11-29T12:51:42Z" level=info msg="Configuring database table schema and indexes, this may take a moment..."
[cockroachdb-v20.2] time="2022-11-29T12:51:42Z" level=trace msg="SETUP EXEC : CREATE TABLE IF NOT EXISTS kine ( id SERIAL PRIMARY KEY, name VARCHAR(630), created INTEGER, deleted INTEGER, create_revision INTEGER, prev_revision INTEGER, lease INTEGER, value bytea, old_value bytea );"
[cockroachdb-v20.2] time="2022-11-29T12:51:42Z" level=fatal msg="building kine: pq: no database or schema specified"

[brandond]

Thanks! I take it the sqlite driver didn't need any changes?

However this also means that the database names for the PostgreSQL driver are now case-sensitive.

That seems like a fair tradeoff; I'll make sure that is mentioned in the release notes.

The CREATE DATABASE statement is never executed for CockroachDB

Hmm, the logs suggest that it is - are you saying that it actually is not? Or that the CREATE TABLE statement just silently fails?

[dakraus]

Yes, the sqlite driver just works.

Regarding CockroachDB:
The CREATE DATABASE statement is obviously executed (as shown in the logs) and the tests are also passing in Drone, so I guess that something is wrong on my end. If I can reproduce this behavior, I would open another issue for that.
I have to correct my statement above - the CREATE DATABASE statement is actually not executed. I described this in #150.

[dereknola]

Is this still relevant?

[brandond]

It is, but I have been reluctant to merge it because of the change in behavior for Postgres.