feat: refactor data extraction and loading functions for improved context handling

cmd/go_migrate/extractor.go

@@ -9,7 +9,7 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-type UnknownRowValues []any
+type UnknownRowValues = []any
 
 func extractFromMssql(ctx context.Context, job MigrationJob, columns []ColumnType, chunkSize int, db *sql.DB, out chan<- []UnknownRowValues) error {
 	query := buildExtractQueryMssql(job, columns)
@@ -40,13 +40,13 @@ func extractFromMssql(ctx context.Context, job MigrationJob, columns []ColumnTyp
 		if len(rowsChunk) >= chunkSize {
 			out <- rowsChunk
 			rowsChunk = make([]UnknownRowValues, 0, chunkSize)
-			log.Infof("Chunk send... %+v", job)
+			log.Debugf("Chunk send... %+v", job)
 		}
 	}
 
 	if len(rowsChunk) > 0 {
 		out <- rowsChunk
-		log.Infof("Chunk send... %+v", job)
+		log.Debugf("Chunk send... %+v", job)
 	}
 
 	return nil