} else {
									columns = append(columns, column.Name)
								}
							}
						}
					}
				}

				onConflict.DoUpdates = append(onConflict.DoUpdates, clause.AssignmentColumns(columns)...)
				if len(onConflict.DoUpdates) == 0 {
					onConflict.DoNothing = true
				}

				// use primary fields as default OnConflict columns
				if len(onConflict.Columns) == 0 {