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ArangoDB v3.3.5 Release Notes

Release Date: 2018-03-28 // about 6 years ago

    • 🛠 fixed issue #4934: Wrong used GeoIndex depending on FILTER order

    • 🏗 make build id appear in startup log message alongside with other version info

    • 👉 make AQL data modification operations that are sent to all shards and that are supposed to return values (i.e. RETURN OLD or RETURN NEW) not return fake empty result rows if the document to be updated/replaced/removed was not present on the target shard

    • ➕ added AQL optimizer rule restrict-to-single-shard

    This rule will kick in if a collection operation (index lookup or data modification operation) will only affect a single shard, and the operation can be restricted to the single shard and is not applied for all shards. This optimization can be applied for queries that access a collection only once in the query, and that do not use traversals, shortest path queries and that do not access collection data dynamically using the DOCUMENT, FULLTEXT, NEAR or WITHIN AQL functions. Additionally, the optimizer will only pull off this optimization if can safely determine the values of all the collection's shard keys from the query, and when the shard keys are covered by a single index (this is always true if the shard key is the default _key)

    • display missing attributes of GatherNodes in AQL explain output

    • ⚡️ make AQL optimizer rule undistribute-remove-after-enum-coll fire in a few more cases in which it is possible

    • slightly improve index selection for the RocksDB engine when there are multiple competing indexes with the same attribute prefixes, but different amount of attributes covered. In this case, the more specialized index will be preferred now

    • 🛠 fix issue #4924: removeFollower now prefers to remove the last follower(s)

    • ➕ added "collect-in-cluster" optimizer rule to have COLLECT WITH COUNT queries without grouping being executed on the DB servers and the coordinator only summing up the counts from the individual shards

    • 🛠 fixed issue #4900: Nested FOR query uses index but ignores other filters

    • properly exit v8::Context in one place where it was missing before

    • ➕ added hidden option --cluster.index-create-timeout for controlling the default value of the index creation timeout in cluster under normal circumstances, this option does not need to be adjusted

    • 0️⃣ increase default timeout for index creation in cluster to 3600s

    • 🛠 fixed issue #4843: Query-Result has more Docs than the Collection itself

    • 🛠 fixed the behavior of ClusterInfo when waiting for current to catch up with plan in create collection.

    • 🛠 fixed issue #4827: COLLECT on edge _to field doesn't group distinct values as expected (MMFiles)