Allow for default dialect id not to be specified and throw an exception

[justin-tay]

Closes #1206

Allows for a default dialect not to be specified.

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.99%. Comparing base (48ca3c2) to head (ab66335).
⚠️ Report is 120 commits behind head on master.
❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1212      +/-   ##
============================================
- Coverage     78.90%   77.99%   -0.91%     
+ Complexity     1965     1930      -35     
============================================
  Files           172      201      +29     
  Lines          6352     6772     +420     
  Branches       1255     1191      -64     
============================================
+ Hits           5012     5282     +270     
- Misses          867     1050     +183     
+ Partials        473      440      -33     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[sschuberth]

Closes #1206

Allows for a default dialect not to be specified.

Is #1206 really the correct issue to close here?