elasticsearch提示Parse Failure [No mapping found for [filed] in order to sort on]]的解决办法

排序代码如下:[code]{
"sort": [
{
"@timestamp": {
"order": "desc"
}
}
]
}[/code]
直接报错
[quote]
Parse Failure [No mapping found for [filed] in order to sort on]]
[/quote]

修改后的代码如下:[code]{
"sort": [
{
"@timestamp": {
"order": "desc",
"ignore_unmapped": true
}
}
]
}[/code]