feat: add type transformations (uuid, wkb, datetime)

Apply row-level transformations for special mssql types: uniqueidentifier, geometry/geography (WKB to EWKB) and datetime (UTC).

cmd/go_migrate/main.go

@@ -4,9 +4,43 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
+type MigrationJob struct {
+	Schema     string
+	Table      string
+	PrimaryKey string
+}
+
+var migrationJobs []MigrationJob = []MigrationJob{
+	{
+		Schema:     "demo",
+		Table:      "users",
+		PrimaryKey: "id",
+	},
+}
+
+const (
+	NumExtractors int = 2
+	ChunkSize     int = 20
+	QueueSize     int = 10
+)
+
 func main() {
 	configureLog()
 	log.Info("Starting migration...")
+	// log.Debugf("Migration jobs: %+v", migrationJobs)
+
+	sourceDb, targetDb, connError := connectToDatabases()
+	if connError != nil {
+		log.Fatal("Connection error: ", connError)
+	}
+
+	defer sourceDb.Close()
+	defer targetDb.Close()
+
+	for _, job := range migrationJobs {
+		log.Infof("Processing job: %+v", job)
+		processMigrationJob(sourceDb, targetDb, job)
+	}
 
 	log.Info("Migration completed successfully!")
 }