Neo4j 3.3.8 发布，高性能图数据库

Neo4j 3.3.8 已发布，Neo4j 是世界领先的高性能图数据库，具备成熟和健壮的数据库的所有特性，如友好的查询语言和事务的 ACID 原则。

更新内容如下：

Kernel

• Remove cursor pooling on a page cache level.

• Upgrade the Bouncy Castle dependency to version 1.60.

• Consistency-checker PropertyReader detects circular property chains

• Fixes an issue in IndexHits#getSingle() where it would miss an item when called after a previous call to IndexHits#hasNext().

• Remove property key tokens limit from BatchInserterImpl.

Cypher

• Fix $12011 by providing the wanted functionality under a feature toggle.

• Remove browser warnings when using temporal and spatial property accessors e.g. .year ,  .x .

• Fix 12029 where combining multiple  a IN with AND and OR could lead to the wrong result.

• Ensure renamed timezones are always returned the same way.

  RETURN datetime("2018-04-05T12:34:00[Canada/East-Saskatchewan]")
  MATCH (n) WHERE n.date = datetime("2018-04-05T12:34:00[Canada/East-Saskatchewan]") RETURN n.date

  Will now return the same object with timezone set to Canada/Saskatchewan , which  Canada/East-Saskatchewan has been renamed to. Previously only the value read from store would be  Canada/Saskatchewan

• Fix bug in queries containing RETURN or  WITH clauses including both a star and a pattern comprehesion (e.g.  ... RETURN *, [ (a)-[:HAS_BUREAU]->(bureau:Bureau) | bureau.CREDIT_ACTIVE = "Active"] AS bureauStatus ), which would previously fail with  WITH/RETURN should note its Scope in the SemanticState .

• Fix bug which would cause FunctionInvocation(...) has to type from semantic analysis errors for some complex  WITH -clauses in a write query.

• Fix planner regression in which HashJoin + AllNodeScan was preferred

  over OptionalExpand in certain cases.

Security

• Properly handle multiple authorization providers. Fixes an issue where if one provider failed (e.g. connection to ldap failed) the user would end up un-authorized even though another provider had succeeded.

Causal Clustering

• Check recovery status of store when bootstrapping cluster

Tools

• Revert mistakenly enabling NEO4J_DEBUG by default for neo4j-admin

Browser

• Add :history clear command

• Add pagecache hits and misses to plan output

• Add complete support for bolt+routing://

• Add Neo4j Community Forum link to sidebar

• Enable users with non reader roles to connect

• Fix :server switch bug in Neo4j Desktop environment

• Fix username not updating in sidebar when disconnecting

• Improve Cypher result rendering performance

• Prepare for Neo4j Desktop distribution

• Fix issue where editor buttons would overflow the viewport

• Fetch fresh version of remote guides on every request

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