我有一个AWS cli命令来更新dynamo db表中的项目：
aws dynamodb update-item --table-name pib-deployments --key '{“stackname”：{“S”：“factiva_search”}}' - update-expression'SET githuburl =：gu，ldapCommaSepList =：ll，lz =：lz，slackChannelName = ：scn，slackToken =：st'--expression-attribute-values '{“：gu”：{“S”：“https://github.com/djin-infrastructure/djin_acntsvc_factiva_search.git”}，“：ll”：{“S”：“gillinwar”}，“：scn”：{“S”：“搜索” -aws-TF-工作“}， “：ST”：{ “S”： “MjcAvMeG9d2CExW6GzSURMqa”}， “：LZ”：{ “M”：{ “cntsvc”：{ “M”：{ “PROD”：{ “M”：{ “蓝色”：{ “M”：{ “弗吉尼亚”：{ “M”： {“approver”：{“S”：“lana”}，“last_modified”：{“S”：“08/18/2017 11：00：29.450”}，“status”：{“S”：“up” }}}}}}}}}}}}” - 返回值ALL_NEW
这给了我：
{
"githuburl": "https://github.com/djin-infrastructure/djin_acntsvc_factiva_search.git",
"ldapCommaSepList": "gillinwar",
"lz": {
"cntsvc": {
"prod": {
"blue": {
"virginia": {
"approver": "lana",
"last_modified": "08/18/2017 11:00:29.450",
"status": "up"
}
}
}
}
},
"slackChannelName": "search-on-aws-tf-jobs",
"slackToken": "MjcAvMeG9d2CExW6GzSURMqa",
"stackname": "factiva_search"
}
这就是我需要的。现在我需要在cntsvc下添加另一个密钥来更新表，所以我使用：
aws dynamodb update-item --table-name pib-deployments --key '{“stackname”：{“S”：“factiva_search”}}' - update-expression'SET githuburl =：gu，ldapCommaSepList =：ll，lz =：lz，slackChannelName = ：scn，slackToken =：st'--expression-attribute-values '{“：gu”：{“S”：“https://github.com/djin-infrastructure/djin_acntsvc_factiva_search.git”}，“：ll”：{“S”：“gillinwar”}，“：scn”：{“S”：“搜索” -aws-TF-工作“}， “：ST”：{ “S”： “MjcAvMeG9d2CExW6GzSURMqa”}， “：LZ”：{ “M”：{ “cntsvc”：{ “M”：{ “鹿”：{ “M”：{ “蓝色”：{ “M”：{ “弗吉尼亚”：{ “M”： {“approver”：{“S”：“lana”}，“last_modified”：{“S”：“08/18/2017 11：00：29.450”}，“status”：{“S”：“up” }}}}}}}}}}}}” - 返回值ALL_NEW
注意cli之间的唯一区别是prod变成了stag，我期待下面的树：
{
"githuburl":"https://github.com/djin-infrastructure/djin_acntsvc_factiva_search.git",
"ldapCommaSepList":"gillingwar",
"lz":{
"cntsvc":{
"prod":{
"blue":{
"virginia":{
"approver":"lana",
"last_modified":"08/18/2017 11:00:29.450",
"status":"up"
}
}
},
"stag":{
"blue":{
"virginia":{
"approver":"lana",
"last_modified":"08/18/2017 11:00:29.450",
"status":"up"
}
}
}
}
},
"slackChannelName":"search-on-aws-tf-jobs",
"slackToken":"MjcAvMeG9d2CExW6GzSURMqa",
"stackname":"factiva_search"
}
但我最终得到的是：
{
"githuburl": "https://github.com/djin-infrastructure/djin_acntsvc_factiva_search.git",
"ldapCommaSepList": "gillingwar",
"lz": {
"cntsvc": {
"stag": {
"blue": {
"virginia": {
"approver": "lana",
"last_modified": "08/18/2017 11:00:29.450",
"status": "up"
}
}
}
}
},
"slackChannelName": "search-on-aws-tf-jobs",
"slackToken": "MjcAvMeG9d2CExW6GzSURMqa",
"stackname": "factiva_search"
}
基本上我的树完全取代了新树而不是添加到它。任何想法为什么以及如何解决？