Description: A temporal join is a type of join that considers the temporal aspect of data in data processing systems. This concept is fundamental in real-time data processing, where the sequence and timing of data generation are crucial for analysis. Unlike traditional joins that focus on matching keys or values, temporal joins allow for the combination of data streams based on timestamps, facilitating the correlation of events occurring at different times. This feature is especially relevant in streaming applications, where data arrives continuously and precise synchronization is required to yield meaningful results. Temporal joins can be used for time series analysis, detecting patterns in real-time data, and enhancing decision-making in dynamic environments. In the context of stream processing, temporal joins allow for handling events that may arrive out of order, ensuring that the analysis is robust and accurate. In summary, temporal joins are a powerful tool for managing real-time data, enabling analysts and data scientists to extract valuable insights from complex data streams.