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我想使用SET子句向节点添加一个新属性。但发生错误并且不执行查询。如何将新属性添加到AgensGraph中的节点?
1)第一命令和错误消息:
MATCH (j {name:'Jack'}) SET j.hobby = 'Playing the guitar';
ERROR: invalid input syntax for type json
LINE 1: match (j {name:'Jack'}) SET j.hobby = 'Playing the guitar';
^
DETAIL: Token "Playing" is invalid.
CONTEXT: JSON data, line 1: Playing...
2)第二命令和错误消息:
MATCH (j {name:'Jack'}) SET j.hobby = "Playing the guitar";
ERROR: column "Playing the guitar" does not exist
LINE 1: match (j {name:'Jack'}) SET j.hobby = "Playing the guitar";
要将新属性添加到节点,我写查询等1)。我用双引号替换它,如2),因为单引号中出现错误。但是,2)查询也会导致错误。
如何将新属性添加到节点?
你是怎么执行这个查询的? 'json'类型和相关的错误信息对我来说有点可疑。 –