NebulaGraph v3.8.0 release notes

• Features:

  • Introduced the SINGLE SHORTEST PATH statement. #5664

  • Introduced the INNER JOIN statement. #5664

  • The ROUND() function now supports various rounding modes. #5680

• Enhancements:

  • Performance:

    • The SHORTEST PATH statement now supports LIMIT pushdown to improve performance. #5657

    • Optimized certain logic to mitigate the impact on write performance after a follower crashes. #5673

    • Optimized session management in the Meta service to reduce latency in high concurrency scenarios. #5762

  • Usability:

    • Optimized the process of graph space deletion to reduce blocking time. #5754

  • Stability:

    • Optimized the LEADER BALANCE algorithm for a more balanced load distribution. #5670

    • Introduced a limit on the maximum number of statements to enhance system protection mechanisms. #5790

• Bug Fixes:

  • DQL:

    • Fixed inconsistent results when executing the LOOKUP statement multiple times. #5662

    • Fixed the syntax error when UNION ALL was used. #5674

    • Fixed incorrect LIMIT results and crashes in SHORTEST PATH, ALL PATH, and NOLOOP PATH scenarios. #5679, #5699, #5787, #5789

    • Fixed the crash issue when executing the SHORTEST PATH statement multiple times with a memory tracker set. #5720

    • Fixed a filtering error to prevent the Graph service from crashing. #5740

    • Fixed execution failure in multi-variable scenarios. #5734

    • Fixed the issue that MATCH SHORTEST PATH did not support self-loop detection. #5738

    • Fixed the crash issue in some scenarios when the filter condition is never met. #5740

    • Fixed the crash issue with the ROUND function. #5773

    • Fixed the incorrect result issue when executing FIND PATH WITH PROP in a one-hop query. #5759

    • Fixed the performance degradation issue when the USE SPACE clause was included in a query statement. #5793

    • Fixed the issue that FIND NOLOOP PATH did not exclude self-loops. #5805

  • Others:

    • Fixed errors when executing the CLONE SPACE statement. #3005, #5781

    • Fixed the issue that no data was collected by the num_vertices_inserted metric when an index existed. #5756

    • Fixed a potential crash issue when queries and schema changes were performed simultaneously. #5855