Fixed bug in Dialect.cs when generating sql for default value of type DateTime
Fixed bug in Dialect.cs and OracleDialect.cs when generating sql for default value of type DateTime
Oracle fix
Update so we can get a Concatenate string from the provider
Fixes from Michal Olson, maybe we should switch to his SQLite Code
change datetime in SqlServer
Older SchemaInfo may not have also TimeStamp column
Workaround: return empty array

This method is only used during SchemaInfo upgrade and without this workaround it throwed an exception on SQLite.

Getting constraints is not easy on SQLite - for now is better to return nothing.
Merge pull request #9 from orient-man/master

Make SchemaInfo upgrade work on SQLite
Fixes -> Allow DateTimeOffset
fix datetime
Fixes in Oracle and MySQL
Add reserved words to MySql