开启script:
Scripting settingsedit
The script.disable_dynamic node setting has been replaced by fine-grained script settings described in the scripting
docs. The following setting previously used to enable dynamic or inline scripts:
script.disable_dynamic: false
It should be replaced with the following two settings in elasticsearch.yml that achieve the same result:
script.inline: on
script.indexed: on
脚本使用，特别注意写法：
curl -XGET 'hm:9200/cars/transactions/_search?search_type=count' -d '
{
"aggs":{
"make":{
"cardinality":{
"script": "doc[\"make\"].value"
}
}
}
}'
curl -XGET 'hm:9200/cars/transactions/_search?search_type=count' -d '
{
"aggs":{
"make":{
"cardinality":{
"script": "doc['"'"'make'"'"'].value"
}
}
}
}'
doc[\"dtEventTime\"].date.getHourOfDay()