Question

我正在尝试用弹性的5.5构建一个有问题的搜索（有弹性2. *我找到了关于如何做到这一点的信息，但在5.5中我不能）

如果用户选择使用某些属性进行过滤，那么我想要显示金额的提示，这不是一些不寻常的，类似于商店的商品。 Image for visualisation

数据集示例：

[
  {
    "id" : "978-0641723445",
    "cat" : ["book","hardcover"],
    "name" : "The Lightning Thief",
    "author" : "Rick Riordan",
    "series_t" : "Percy Jackson and the Olympians",
    "sequence_i" : 1,
    "genre_s" : "fantasy",
    "inStock" : true,
    "price" : 12.50,
    "pages_i" : 384
  }
,
  {
    "id" : "978-1423103349",
    "cat" : ["book","paperback"],
    "name" : "The Sea of Monsters",
    "author" : "Rick Riordan",
    "series_t" : "Percy Jackson and the Olympians",
    "sequence_i" : 2,
    "genre_s" : "fantasy",
    "inStock" : true,
    "price" : 6.49,
    "pages_i" : 304
  }
,
  {
    "id" : "978-1857995879",
    "cat" : ["book","paperback"],
    "name" : "Sophie's World : The Greek Philosophers",
    "author" : "Jostein Gaarder",
    "sequence_i" : 1,
    "genre_s" : "fantasy",
    "inStock" : true,
    "price" : 3.07,
    "pages_i" : 64
  }
,
  {
    "id" : "978-1933988177",
    "cat" : ["book","paperback"],
    "name" : "Lucene in Action, Second Edition",
    "author" : "Michael McCandless",
    "sequence_i" : 1,
    "genre_s" : "IT",
    "inStock" : true,
    "price" : 30.50,
    "pages_i" : 475
  }
]

谢谢！

Answer 1

你只需要使用aggs而不是facets。聚合比方面更强大。

例如：

GET index/_search
{
    "aggs" : {
        "countries" : {
            "terms" : { "field" : "country" }
        },
        "types" : {
            "terms" : { "field" : "type" }
        }
    }
}

然后，如果用户点击“facet”，只需在bool查询中添加一个过滤子句（这将更新所有构面计数）或添加post_filter以仅过滤结果（不影响聚合）。

Answer 2

如果列是文本，则需要使用＆＃34; .keyword＆＃34;也可以处理有很多单词的国名的情况（＆＃34;萨尔瓦多＆＃34;，＆＃34;美利坚合众国＆＃34;等）

GET index/_search
{
    "aggs" : {
        "countries" : {
            "terms" : { "field" : "country.keyword" }
        }
    }
}

弹性面5.5

2 个答案: