2747 Fixed IsUnknownType error for Kusto#989

Merged

JustinMDotNet merged 2 commits intofeature-ADEfrom 2747-Fix_IsUnknownType_Error

Jun 30, 2020

+13-10

Commits on Jun 24, 2020

2747 Removed unused directives in Kusto > DbColumnWrapper. Refactored IsUnknownType to handle null DataTypeName
JustinMDotNet
committed

Commits on Jun 26, 2020

2747 Reverted IsUnknownType change in DbColumnWrapper. Changed DataTypeName to get calue from ColumnType. Refactored SafeGetValue to type check before hard casting to reduce case exceptions.
JustinMDotNet
committed