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Nebula Graph v2.0 GA
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@jude-zhu jude-zhu released this 23 Mar 05:45
v2.0.0
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New Features

  • vertexID supports both Integer and String.
  • New data types:
    • NULL: the property can be set to NULL. NOT NULL constraint is also supported
    • Composite types: LIST, SET, and MAP(Cannot be set as property types)
    • Temporal types: DATE and DATETIME.
    • FIXED_STRING: a fixed size String
  • Full-text indexes are supported to do prefix, wildcard, regex, and fuzzy search on a string property.
  • Explain & Profile outputs the execution plan of an nGQL statement and execution profile.
  • Subgraph to retrieve vertices and edges reachable from the start vertices.
  • Support to collect statistics of the graph space.
  • OpenCypher compatibility
    • Partially support the MATCH clause
    • Support RETURN, WITH, UNWIND, LIMIT & SKIP clauses
  • More built-in functions
    • Predicate functions
    • Scalar functions
    • List functions
    • Aggregating functions
    • Mathematical functions
    • String functions
    • Temporal functions

Improvements

  • Optimize the performance of inserting, updating, and deleting data with indexes.
  • LOOKUP ON filtering data supports OR and AND operators.
  • FIND PATH supports finding paths with or without regard to direction, and also supports excluding cycles in paths.
  • SHOW HOSTS graph/meta/storage supports to retrieve the basic information of graphd/metad/storaged hosts.

Changelog

  • The data type of vertexID must be specified when creating a graph space.
  • FETCH PROP ON returns a composite object if not specify the result set.
  • Changed the default port numbers of metad, graphd, and storaged.
  • Refactor metrics counters.

Nebula-graph Console

Supports local commands mode. :set csv outputs the query results to the console and the specified CSV file. For more information, please refer to https://github.com/vesoft-inc/nebula-console.

Clients

Support connection pool and load balance.

Nebula Graph Studio

With Studio, you can create a graph schema, load data, execute nGQL statements, and explore graphs in one stop. For more information, please refer to https://github.com/vesoft-inc/nebula-web-docker.

Known Issues

Assets 8
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