Support MariaDB

[junsu0ms]

The current query build has incompatiable syntax for mariadb. the current test status is:

Failed! - Failed: 10, Passed: 65, Skipped: 0, Total: 75, Duration: 14 s - Azure.DataGateway.Service.Tests.dll (net5.0)

Need decision on how we want to support mariadb

[junsu0ms]

The issue is LATERAL JOIN is not supported in MariaDB. (also not supported in early versions of MySQL)