///------------------------------------------------------------------------
/// High level semantics
///
// create a target instance
public static bool Open(string name, DatabaseKinds dskind)
{
Logger.WriteLine(3, $">Sql Open {name} {dskind}");
ExprDict = new Dictionary <int, ExpressionEval>();
var sqleval = SqlEvaluator.Create();
switch (dskind)
{
case DatabaseKinds.Sqlite:
var database = Sqlite.SqliteDatabase.Create(name, sqleval);
Current = new SqlTarget {
_sqlgen = new SqlGen()
{
Templater = new SqliteTemplater(),
},
_database = database,
FunctionCreator = database,
};
break;
case DatabaseKinds.Postgres:
Current = new SqlTarget {
_sqlgen = new SqlGen()
{
Templater = new PostgresTemplater(),
},
_database = Postgres.PostgresDatabase.Create(name, sqleval),
// FunctionCreator set later by gateway
};
break;
default:
throw Logger.Fatal(dskind);
}
if (!Current._database.IsOpen)
{
throw Current.SqlError("database open failed");
}
return(true);
}
