add wait for table

flow/connectors/bigquery/bigquery.go

@@ -227,6 +227,29 @@ func (c *BigQueryConnector) InitializeTableSchema(req map[string]*protos.TableSc
 	return nil
 }
 
+func (c *BigQueryConnector) WaitForTableReady(tblName string) error {
+	table := c.client.Dataset(c.datasetID).Table(tblName)
+	maxDuration := 5 * time.Minute
+	deadline := time.Now().Add(maxDuration)
+	sleepInterval := 15 * time.Second
+	attempt := 0
+
+	for {
+		if time.Now().After(deadline) {
+			return fmt.Errorf("timeout reached while waiting for table %s to be ready", tblName)
+		}
+
+		_, err := table.Metadata(c.ctx)
+		if err == nil {
+			return nil
+		}
+
+		log.Infof("waiting for table %s to be ready, attempt %d", tblName, attempt)
+		attempt++
+		time.Sleep(sleepInterval)
+	}
+}
+
 // ReplayTableSchemaDeltas changes a destination table to match the schema at source
 // This could involve adding or dropping multiple columns.
 func (c *BigQueryConnector) ReplayTableSchemaDeltas(flowJobName string,

flow/connectors/bigquery/qrep_avro_sync.go

@@ -402,14 +402,15 @@ func (s *QRepAvroSyncMethod) writeToStage(
 		return 0, fmt.Errorf("failed to wait for BigQuery load job: %w", err)
 	}
 
-	if len(status.Errors) > 0 {
-		return 0, fmt.Errorf("failed to load Avro file into BigQuery table: %v", status.Errors)
-	}
-
 	if err := status.Err(); err != nil {
 		return 0, fmt.Errorf("failed to load Avro file into BigQuery table: %w", err)
 	}
 
+	err = s.connector.WaitForTableReady(stagingTable)
+	if err != nil {
+		return 0, fmt.Errorf("failed to wait for table to be ready: %w", err)
+	}
+
 	log.Infof("Pushed into %s/%s", avroFile.FilePath, syncID)
 	return avroFile.NumRecords, nil
 }