[英]Elastic Search Sum aggregation with group by and where condition
我是ElasticSearch的新手。
我们目前正在将代码从关系数据库转移到ElasticSearch。 所以我们用ElasticSearch查询格式转换查询。
我正在寻找相当于以下查询的ElasticSearch -
SELECT Color, SUM(ListPrice), SUM(StandardCost)
FROM Production.Product
WHERE Color IS NOT NULL
AND ListPrice != 0.00
AND Name LIKE 'Mountain%'
GROUP BY Color
有人能为我提供上面的ElasticSearch查询示例吗?
您有一个带有product
类型文档的products
索引,根据您的查询,其映射可能如下所示:
curl -XPUT localhost:9200/products -d '
{
"mappings": {
"product": {
"properties": {
"Color": {
"type": "string"
},
"Name": {
"type": "string"
},
"ListPrice": {
"type": "double"
},
"StandardCost": {
"type": "double"
}
}
}
}
}'
然后,相当于上面给出的SQL查询的ES查询将如下所示:
{
"query": {
"filtered": {
"query": {
"query_string": {
"default_field": "Name",
"query": "Mountain*"
}
},
"filter": {
"bool": {
"must_not": [
{
"missing": {
"field": "Color"
}
},
{
"term": {
"ListPrice": 0
}
}
]
}
}
}
},
"aggs": {
"by_color": {
"terms": {
"field": "Color"
},
"aggs": {
"total_price": {
"sum": {
"field": "ListPrice"
}
},
"total_cost": {
"sum": {
"field": "StandardCost"
}
}
}
}
}
}
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