es – elasticsearch mapping – parameters – 1

There is no such thing as perfect programming, but we shouldn’t be discouraged because programming is a constant pursuit of perfection.

Q: What are the parameters of ES Mapping?

A:



Q: What are the characteristics of analyzer?

A:



Q: How is Analyzer used?

A:

# analyzer # Custom analyzer PUT /analyzer_test {"settings" : {
    "analysis" : {
      "analyzer" : {
        "my_analyzer" : {
          "type"      : "custom"."tokenizer" : "standard"."filter"    : ["lowercase"]},"my_stop_analyzer" : {
          "type"      : "custom"."tokenizer" : "standard"."filter"    : ["lowercase"."english_stop"]}},"filter" : {
          "english_stop" : {
            "type"      : "stop"."stopwords" : "_english_"}}}},"mappings" : {
    "properties" : {
      "name1" : {
        "type"    : "text"."analyzer": "my_analyzer"
      },
      "name2" : {
        "type"            : "text"."analyzer"        : "my_analyzer"."search_analyzer" : "my_stop_analyzer"
      },
      "name3" : {
        "type"                  : "text"."analyzer"              : "my_analyzer"."search_analyzer"       : "my_stop_analyzer"."search_quote_analyzer" : "my_analyzer"
      }
    }
  }
}

# 索引
POST /analyzer_test/_doc/1
{
  "name1" : "this is my hello good"."name2" : "this is my hello good"."name3" : "this is my hello good"} # index POST /analyzer_test/_doc/2
{
  "name1" : "a hello good"."name2" : "a hello good"."name3" : "a hello good"} GET /analyzer_test/_search {"query" : {
    "match_phrase" : {
      "name1" : "a hello good"}}} # result {"took" : 0."timed_out" : false."_shards" : {
    "total" : 1."successful" : 1."skipped" : 0."failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1."relation" : "eq"
    },
    "max_score" : 1.178298."hits": [{"_index" : "analyzer_test"."_type" : "_doc"."_id" : "2"."_score" : 1.178298."_source" : {
          "name1" : "a hello good"."name2" : "a hello good"."name3" : "a hello good"}} GET /analyzer_test/_search {"query" : {
    "match_phrase" : {
      "name2" : "a hello good"}}} # result {"took" : 0."timed_out" : false."_shards" : {
    "total" : 1."successful" : 1."skipped" : 0."failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2."relation" : "eq"
    },
    "max_score" : 0.40618476."hits": [{"_index" : "analyzer_test"."_type" : "_doc"."_id" : "2"."_score" : 0.40618476."_source" : {
          "name1" : "a hello good"."name2" : "a hello good"."name3" : "a hello good"}}, {"_index" : "analyzer_test"."_type" : "_doc"."_id" : "1"."_score" : 0.33081025."_source" : {
          "name1" : "this is my hello good"."name2" : "this is my hello good"."name3" : "this is my hello good"GET /analyzer_test/_search {GET /analyzer_test/_search}"query" : {
    "match_phrase" : {
      "name3" : "a hello good"}}} # result {"took" : 0."timed_out" : false."_shards" : {
    "total" : 1."successful" : 1."skipped" : 0."failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1."relation" : "eq"
    },
    "max_score" : 1.178298."hits": [{"_index" : "analyzer_test"."_type" : "_doc"."_id" : "2"."_score" : 1.178298."_source" : {
          "name1" : "a hello good"."name2" : "a hello good"."name3" : "a hello good"GET /analyzer_test/_search {"query" : {
    "match" : {
      "name3" : "a hello good"}}} # result {"took" : 1."timed_out" : false."_shards" : {
    "total" : 1."successful" : 1."skipped" : 0."failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2."relation" : "eq"
    },
    "max_score" : 0.40618476."hits": [{"_index" : "analyzer_test"."_type" : "_doc"."_id" : "2"."_score" : 0.40618476."_source" : {
          "name1" : "a hello good"."name2" : "a hello good"."name3" : "a hello good"}}, {"_index" : "analyzer_test"."_type" : "_doc"."_id" : "1"."_score" : 0.33081025."_source" : {
          "name1" : "this is my hello good"."name2" : "this is my hello good"."name3" : "this is my hello good"}}]}}Copy the code