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v4.2
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    v4.2

      Introduction

      Thanks for reading Ultipa Graph Query Language Handbook. If you have any questions about the handbook, please do not hesitate to contact our Technical Team.

      Change Log (V4.1 to V4.2):

      Server Updates:

      • Improved metadata structure and reduced memory usage.
      • Improved data storage and data modification.
      • Supports EXTA (Extended Algorithm and All) that allows users to write custom algorithm plug-ins and function plug-ins.
      • Adds Server.docker_mem_usage_path and Server.memory_max_limit in config to allow memory limit control for Cloud version.
      • Supports setting time-zone for timestamp via SDKs.

      UQL New Features:

      • Supports property type text that does not have length limit.
      • Data type list (or understood array) now supports obtaining elements by index, eg: list[0], list[1:2], list[2:].
      • Operations INSERT, UPDATE and DELETE now support parameter limit().
      • Adds new functions: dateFormat(), toString(), ifnull(), reduce().
      • Adds prefix keywords EXPLAIN, DEBUG and PROFILE to display performance statistics from different aspects.
      • Clause WHERE now supports aggregate functions.

      UQL Modifications:

      • Much wider naming conventions of schema, property, and alias.
      • Function name changes:
        • date_add() -> dateAdd()
        • date_diff() -> dateDiff()
        • day_of_week() -> dayOfWeek()
        • array_union() -> listUnion()
        • starts_with() -> startsWith()
        • ends_with() -> endsWith()
      • Modified Math Operators and Math Functions rules for null data.

      The Ultipa Query Language is created and designed by Ultipa Team.

      Documentation license: Creative Commons 4.0

      Please complete the following information to download this book
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