NebulaGraph v3.4.0
Feature
Enhancement
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Modify the default value of the Graph service parameter
session_reclaim_interval_secsto 60 seconds. #5246 -
Adjust the default level of
stderrthresholdin the configuration file. #5188 -
Limit the maximum depth of the plan tree in the optimizer to avoid stack overflows. #5050
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Optimize the treatment scheme when the pattern expressions are used as predicates. #4916
Bugfix
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Fix the bug about query plan generation and optimization. #4863 #4813
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Fix the bugs related to indexes:
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Fix the bugs related to query statements:
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Fix the bugs related to DDL and DML statements:
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Fix the bugs related to other functions:
Change
- The added property name can not be the same as an existing or deleted property name, otherwise, the operation of adding a property fails. #5130
- Limit the type conversion when modifying the schema. #5098
- The default value must be specified when creating a property of type
NOT NULL. #5105 - Add the multithreaded query parameter
query_concurrentlyto the configuration file with a default value oftrue. #5119 - Remove the parameter
kv_separationof the KV separation storage function from the configuration file, which is turned off by default. #5119 - Modify the default value of
local_configin the configuration file totrue. #5119 - Consistent use of
v.tag.propertyto get property values, because it is necessary to specify the Tag. Usingv.propertyto access the property of a Tag onvwas incorrectly allowed in the previous version. #5230 - Remove the column
HTTP portfrom the commandSHOW HOSTS. #5056 - Disable the queries of the form
OPTIONAL MATCH <pattern> WHERE <condition>. #5273 - Disable TOSS. #5119
- Rename Listener's pid filename and log directory name. #5119
Notes for upgrading
To upgrade to v3.4.0, follow the upgrade guide:
Download
- CN: https://nebula-graph.com.cn/download/
- EN: https://nebula-graph.io/download/