dongyi9783 2019-08-29 00:45
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用多个键更新dynamodb golang

I want to update a dynamodb table with a list of keys. My struct is :

{ ID int, Code String

}

I have a list of Code values, and i want the dynamodb update when the register is equal with any of Code values:

{ID : 1, Code: "anything"} {ID: 1, Code: "another_code"}

when the table find a ID with value 1 and Code like "anything", or "another_code" which update the value of the register. I did noticed that is not possible, i should use a loop and update each line per time, is true?

return dynamodb.UpdateItemInput{
    TableName:                 &tableName,
    Key:                       attributeObject,
    UpdateExpression:          &expression,
    ConditionExpression:       &conditional,
    ExpressionAttributeValues: expressionAttributeValues,
    ExpressionAttributeNames:  expressionAttributeNames,        
}
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  • doudiao2335 2019-08-29 15:25
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    Currently, DynamoDB's Batch operations only support reading or inserting multiple items at a time; updating existing values is not yet supported. So like you suggested, you'll need to loop through each key you want to update and make a separate request.

    See also: How to update multiple items in a DynamoDB table at once

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