mysql: reading arbitrary SQL data in go is really strange, data is only in strings?

pkg/services/sqlstore/migrations/stats_mig.go

@@ -0,0 +1,35 @@
+package migrations
+
+import . "github.com/grafana/grafana/pkg/services/sqlstore/migrator"
+
+func addStatsMigrations(mg *Migrator) {
+	statTable := Table{
+		Name: "stat",
+		Columns: []*Column{
+			{Name: "id", Type: DB_Int, IsPrimaryKey: true, IsAutoIncrement: true},
+			{Name: "metric", Type: DB_Varchar, Length: 20, Nullable: false},
+			{Name: "type", Type: DB_Int, Nullable: false},
+		},
+		Indices: []*Index{
+			{Cols: []string{"metric"}, Type: UniqueIndex},
+		},
+	}
+
+	// create table
+	mg.AddMigration("create stat table", NewAddTableMigration(statTable))
+
+	// create indices
+	mg.AddMigration("add index stat.metric", NewAddIndexMigration(statTable, statTable.Indices[0]))
+
+	statValue := Table{
+		Name: "stat_value",
+		Columns: []*Column{
+			{Name: "id", Type: DB_Int, IsPrimaryKey: true, IsAutoIncrement: true},
+			{Name: "value", Type: DB_Double, Nullable: false},
+			{Name: "time", Type: DB_DateTime, Nullable: false},
+		},
+	}
+
+	// create table
+	mg.AddMigration("create stat_value table", NewAddTableMigration(statValue))
+}