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list supported property types #901

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Aug 24, 2021
Merged

list supported property types #901

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2 changes: 1 addition & 1 deletion docs-2.0/3.ngql-guide/10.tag-statements/1.create-tag.md
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ CREATE TAG [IF NOT EXISTS] <tag_name>
|`IF NOT EXISTS`|检测待创建的Tag是否存在，只有不存在时，才会创建Tag。仅检测Tag的名称，不会检测具体属性。|
|`<tag_name>`|每个图空间内的Tag必须是唯一的。Tag名称设置后无法修改。Tag名称由大小写英文字母、数字或下划线组成，区分大写小，且不可使用[关键字和保留字](../../3.ngql-guide/1.nGQL-overview/keywords-and-reserved-words.md)。|
|`<prop_name>`|属性名称。每个Tag中的属性名称必须唯一。属性的命名规则与Tag相同。|
|`<data_type>`|属性的数据类型。数据类型的完整说明，请参见[数值类型](../3.data-types/1.numeric.md)、[布尔](../3.data-types/2.boolean.md)等文档。|
|`<data_type>`|属性的数据类型，目前支持[数值](../3.data-types/1.numeric.md)、[布尔](../3.data-types/2.boolean.md)、[字符串](../3.data-types/3.string.md)以及[日期与时间](../3.data-types/4.date-and-time.md)。|
|`NULL \| NOT NULL`|指定属性值是否支持为`NULL`。默认值为`NULL`。|
|`DEFAULT`|指定属性的默认值。默认值可以是一个文字值或Nebula Graph支持的表达式。如果插入点时没有指定某个属性的值，则使用默认值。|
|`COMMENT`|对单个属性或Tag的描述。最大为256字节。默认无描述。|
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2 changes: 1 addition & 1 deletion docs-2.0/3.ngql-guide/11.edge-type-statements/1.create-edge.md
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Expand Up @@ -33,7 +33,7 @@ CREATE EDGE [IF NOT EXISTS] <edge_type_name>
|`IF NOT EXISTS`|检测待创建的Edge type是否存在，只有不存在时，才会创建Edge type。仅检测Edge type的名称，不会检测具体属性。|
|`<edge_type_name>`|每个图空间内的Edge type必须是唯一的。Edge type名称设置后无法修改。Edge type名称由大小写英文字母、数字或下划线组成，区分大写小，且不可使用[关键字和保留字](../../3.ngql-guide/1.nGQL-overview/keywords-and-reserved-words.md)。|
|`<prop_name>`|属性名称。每个Edge type中的属性名称必须唯一。属性的命名规则与Edge type相同。|
|`<data_type>`|属性的数据类型。数据类型的完整说明，请参见[数值类型](../3.data-types/1.numeric.md)、[布尔](../3.data-types/2.boolean.md)等文档。|
|`<data_type>`|属性的数据类型，目前支持[数值](../3.data-types/1.numeric.md)、[布尔](../3.data-types/2.boolean.md)、[字符串](../3.data-types/3.string.md)以及[日期与时间](../3.data-types/4.date-and-time.md)。|
|`NULL \| NOT NULL`|指定属性值是否支持为`NULL`。默认值为`NULL`。|
|`DEFAULT`|指定属性的默认值。默认值可以是一个文字值或Nebula Graph支持的表达式。如果插入边时没有指定某个属性的值，则使用默认值。|
|`COMMENT`|对单个属性或Edge type的描述。最大为256字节。默认无描述。|
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