Database design 如何在DynamoDB中将排序键设置为全局辅助索引（另一个分区键）。。？_Database Design_Primary Key_Amazon Dynamodb

Database design 如何在DynamoDB中将排序键设置为全局辅助索引（另一个分区键）。。？

database-design amazon-dynamodb

Database design 如何在DynamoDB中将排序键设置为全局辅助索引（另一个分区键）。。？,database-design,primary-key,amazon-dynamodb,Database Design,Primary Key,Amazon Dynamodb,我使用了带有以下字段的DynamoDB表：主分区键=>用户id 主排序键=>对话id 样本表数据 +---------+--------------------+ |用户|会话| id| +---------+--------------------+ |10 | aaaa | |10 | bbbb | |10 |中交| |11 | aaaa| |11 | bbbb | |11 |中交| +---------+--------------------+ 我在dynamodb中有两个单独的查询：

我使用了带有以下字段的DynamoDB表：

主分区键=>

用户id

主排序键=>

对话id

样本表数据

+---------+--------------------+
|用户|会话| id|
+---------+--------------------+
|10 | aaaa |
|10 | bbbb |
|10 |中交|

|11 | aaaa|
|11 | bbbb |
|11 |中交|
+---------+--------------------+

我在dynamodb中有两个单独的查询：

按特定的

user\u id

获取所有

conversation\u id

如果输入10=>输出=>aaaa、bbbb、cccc


如何从特定的会话\u id
获取所有用户\u id？
如果输入aaaa=>输出=>10,11
我可以得到第一次查询的结果，但是如何获取第二次查询的结果呢
使用主排序键（conversation\u id
）或
如何将会话id分配或创建为全局辅助索引（另一个分区键）
注意：我正在使用PHP（Codeigniter框架）
1）您需要使用query
来获取分区键的所有排序键。请参考下面的链接


2） 使用AWS CLI命令创建GSI
本地发电机B:-
aws dynamodb update-table --table-name message_participants_tbl --attribute-definitions file://create_gsi_attributes_conversation.json --global-secondary-index-updates file://create_gsi_conversation.json --endpoint-url http://localhost:8000

[{
    "Create": {
        "IndexName": "message_participants_tbl_gsi",
        "KeySchema": [{
            "AttributeName": "conversation_id",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "user_id",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

[{
    "AttributeName": "user_id",
    "AttributeType": "S"
},
{
    "AttributeName": "conversation_id",
    "AttributeType": "S"
}]

您可能需要删除端点url并包括相应的地区——地区us-east-1
。另外，请相应地更改表名
aws dynamodb update-table --table-name Movies --attribute-definitions file://create_gsi_attributes.json --global-secondary-index-updates file://create_gsi.json --endpoint-url http://localhost:8000

创建\u gsi\u属性。json:-
aws dynamodb update-table --table-name message_participants_tbl --attribute-definitions file://create_gsi_attributes_conversation.json --global-secondary-index-updates file://create_gsi_conversation.json --endpoint-url http://localhost:8000

[{
    "Create": {
        "IndexName": "message_participants_tbl_gsi",
        "KeySchema": [{
            "AttributeName": "conversation_id",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "user_id",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

[{
    "AttributeName": "user_id",
    "AttributeType": "S"
},
{
    "AttributeName": "conversation_id",
    "AttributeType": "S"
}]

请将属性名称（和类型）更改为conversation\u id
和user\u id

[{
    "AttributeName": "title",
    "AttributeType": "S"
},
{
    "AttributeName": "yearkey",
    "AttributeType": "N"
}]

[{
    "Create": {
        "IndexName": "Movies_Gsi",
        "KeySchema": [{
            "AttributeName": "title",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "yearkey",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

创建\u gsi.json:-
aws dynamodb update-table --table-name message_participants_tbl --attribute-definitions file://create_gsi_attributes_conversation.json --global-secondary-index-updates file://create_gsi_conversation.json --endpoint-url http://localhost:8000

[{
    "Create": {
        "IndexName": "message_participants_tbl_gsi",
        "KeySchema": [{
            "AttributeName": "conversation_id",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "user_id",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

[{
    "AttributeName": "user_id",
    "AttributeType": "S"
},
{
    "AttributeName": "conversation_id",
    "AttributeType": "S"
}]

请将密钥架构属性名称更改为conversation\u id
和user\u id

[{
    "AttributeName": "title",
    "AttributeType": "S"
},
{
    "AttributeName": "yearkey",
    "AttributeType": "N"
}]

[{
    "Create": {
        "IndexName": "Movies_Gsi",
        "KeySchema": [{
            "AttributeName": "title",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "yearkey",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

编辑：-
aws dynamodb update-table --table-name message_participants_tbl --attribute-definitions file://create_gsi_attributes_conversation.json --global-secondary-index-updates file://create_gsi_conversation.json --endpoint-url http://localhost:8000

[{
    "Create": {
        "IndexName": "message_participants_tbl_gsi",
        "KeySchema": [{
            "AttributeName": "conversation_id",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "user_id",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

[{
    "AttributeName": "user_id",
    "AttributeType": "S"
},
{
    "AttributeName": "conversation_id",
    "AttributeType": "S"
}]

命令：-
aws dynamodb update-table --table-name message_participants_tbl --attribute-definitions file://create_gsi_attributes_conversation.json --global-secondary-index-updates file://create_gsi_conversation.json --endpoint-url http://localhost:8000

[{
    "Create": {
        "IndexName": "message_participants_tbl_gsi",
        "KeySchema": [{
            "AttributeName": "conversation_id",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "user_id",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

[{
    "AttributeName": "user_id",
    "AttributeType": "S"
},
{
    "AttributeName": "conversation_id",
    "AttributeType": "S"
}]

创建\u gsi\u对话。json:-
aws dynamodb update-table --table-name message_participants_tbl --attribute-definitions file://create_gsi_attributes_conversation.json --global-secondary-index-updates file://create_gsi_conversation.json --endpoint-url http://localhost:8000

[{
    "Create": {
        "IndexName": "message_participants_tbl_gsi",
        "KeySchema": [{
            "AttributeName": "conversation_id",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "user_id",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

[{
    "AttributeName": "user_id",
    "AttributeType": "S"
},
{
    "AttributeName": "conversation_id",
    "AttributeType": "S"
}]

create\u gsi\u attributes\u conversation.json:-
aws dynamodb update-table --table-name message_participants_tbl --attribute-definitions file://create_gsi_attributes_conversation.json --global-secondary-index-updates file://create_gsi_conversation.json --endpoint-url http://localhost:8000

[{
    "Create": {
        "IndexName": "message_participants_tbl_gsi",
        "KeySchema": [{
            "AttributeName": "conversation_id",
            "KeyType": "HASH"
        },
        {
            "AttributeName": "user_id",
            "KeyType": "RANGE"
        }],
        "Projection": {
            "ProjectionType": "ALL"
        },
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 100,
            "WriteCapacityUnits": 100
        }
    }
}]

[{
    "AttributeName": "user_id",
    "AttributeType": "S"
},
{
    "AttributeName": "conversation_id",
    "AttributeType": "S"
}]

您能否在create\u gsi\u attributes.json
和create\u gsi.json
中使用名称conversation\u id
和user\u id
。。。？我无法理解需要为conversation\u id
和user\u id
分配哪个键类型。用户id和conversation id的数据类型是什么？更新了特定于表的命令和json。请试一试。