public static TableSchema getPhysicalSchema(TableSchema tableSchema) {
    TableSchema.Builder builder = filter(tableSchema, TableColumn::isPhysical);
    return builder.build();
  }
get physical tableSchema

@param tableSchema Flink TableSchema
@return Flink tableSchema
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/main/java/org/apache/amoro/flink/FlinkSchemaUtil.java