Elasticsearch - must, and, should, must_not, filter, query

es-3.json

// MATCH == SHOULD
GET /product/_search >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
{
  "query": {
    "match": {
      "name": "Spring Title"
    }
  }
}

{
  "took" : 2,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1,
      "relation" : "eq"
    },
    "max_score" : 0.6931471,
    "hits" : [
      {
        "_index" : "product",
        "_type" : "_doc",
        "_id" : "2",
        "_score" : 0.6931471,
        "_source" : {
          "name" : "Spring Framework 2: Beginner",
          "price" : 109.0,
          "description" : "Learn Spring Framework",
          "status" : "active",
          "quantity" : 1,
          "categories" : [
            {
              "name" : "Software"
            }
          ],
          "tags" : [
            "java",
            "Spring framework"
          ],
          "date" : "2020-01-19"
        }
      }
    ]
  }
}

GET /product/_search
{
  "query": {
    "bool": {
      "should": [
        {
          "term": {
            "name": "spring"
          }
        },
        {
          "term": {
            "name": "Title"
          }
        }
      ]
    }
  }
}

{
  "took" : 2,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1,
      "relation" : "eq"
    },
    "max_score" : 0.6931471,
    "hits" : [
      {
        "_index" : "product",
        "_type" : "_doc",
        "_id" : "2",
        "_score" : 0.6931471,
        "_source" : {
          "name" : "Spring Framework 2: Beginner",
          "price" : 109.0,
          "description" : "Learn Spring Framework",
          "status" : "active",
          "quantity" : 1,
          "categories" : [
            {
              "name" : "Software"
            }
          ],
          "tags" : [
            "java",
            "Spring framework"
          ],
          "date" : "2020-01-19"
        }
      }
    ]
  }
}

// AND == MUST
GET /product/_search >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
{
  "query": {
    "match": {
      "name": {
        "query": "spring title",
        "operator": "and"
      }
    }
  }
}

{
  "took" : 0,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 0,
      "relation" : "eq"
    },
    "max_score" : null,
    "hits" : [ ]
  }
}

GET /product/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "term": {
            "name": "spring"
          }
        },
        {
          "term": {
            "name": "title"
          }
        }
      ]
    }
  }
}

{
  "took" : 1,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 0,
      "relation" : "eq"
    },
    "max_score" : null,
    "hits" : [ ]
  }
}

// Query clause with MUST key
GET /product/_search >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "name": "framework"
          }
        },
        {
          "range": {
            "price": {
              "lte": 110.00
            }
          }
        }
      ]
    }
  }
}

{
  "took" : 0,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2,
      "relation" : "eq"
    },
    "max_score" : 1.1823215,
    "hits" : [
      {
        "_index" : "product",
        "_type" : "_doc",
        "_id" : "2",
        "_score" : 1.1823215,
        "_source" : {
          "name" : "Spring Framework 2: Beginner",
          "price" : 109.0,
          "description" : "Learn Spring Framework",
          "status" : "active",
          "quantity" : 1,
          "categories" : [
            {
              "name" : "Software"
            }
          ],
          "tags" : [
            "java",
            "Spring framework"
          ],
          "date" : "2020-01-19"
        }
      },
      {
        "_index" : "product",
        "_type" : "_doc",
        "_id" : "3",
        "_score" : 1.1823215,
        "_source" : {
          "name" : "Django Framework 2: Beginner",
          "price" : 59.0,
          "description" : "Learn Django Framework",
          "status" : "active",
          "quantity" : 1,
          "categories" : [
            {
              "name" : "Software"
            }
          ],
          "tags" : [
            "python",
            "Django framework"
          ]
        }
      }
    ]
  }
}


// Range Query [Above] Vs Range Filter [below]
// In a query the documents are ranked relative to reach other, 
// whereas in filter that is not the case, hence it is faster.
// [ must and should → query context ]
// [ filter and must_not → filter context ]
GET /product/_search >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
{
  "query": {
    "bool": {
      "must_not": [
        {
          "match": {
            "name": "advance"
          }
        }
      ],
      "filter": [
        {
          "range": {
            "price": {
              "lte": 150.00
            }
          }
        }
      ]
    }
  }
}

{
  "took" : 1,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2,
      "relation" : "eq"
    },
    "max_score" : 0.0,
    "hits" : [
      {
        "_index" : "product",
        "_type" : "_doc",
        "_id" : "2",
        "_score" : 0.0,
        "_source" : {
          "name" : "Spring Framework 2: Beginner",
          "price" : 109.0,
          "description" : "Learn Spring Framework",
          "status" : "active",
          "quantity" : 1,
          "categories" : [
            {
              "name" : "Software"
            }
          ],
          "tags" : [
            "java",
            "Spring framework"
          ],
          "date" : "2020-01-19"
        }
      },
      {
        "_index" : "product",
        "_type" : "_doc",
        "_id" : "3",
        "_score" : 0.0,
        "_source" : {
          "name" : "Django Framework 2: Beginner",
          "price" : 59.0,
          "description" : "Learn Django Framework",
          "status" : "active",
          "quantity" : 1,
          "categories" : [
            {
              "name" : "Software"
            }
          ],
          "tags" : [
            "python",
            "Django framework"
          ]
        }
      }
    ]
  }
}

// Should when alone acts as AND, 
// But with (must | must_not) act as OR
GET /product/_search >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
{
  "query": {
    "bool": {
      "should": [
        {
          "match": {
            "description": "python"
          }
        }
      ]
    }
  }
}

{
  "took" : 0,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 0,
      "relation" : "eq"
    },
    "max_score" : null,
    "hits" : [ ]
  }
}

GET /product/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "name": "advance"
          }
        }
      ],
      "must_not": [
        {
          "match": {
            "status": "active"
          }
        }
      ],
      "should": [
        {
          "match": {
            "description": "python"
          }
        }
      ],
      "filter": [
        {
          "range": {
            "price": {
              "gte": 10.00
            }
          }
        }
      ]
    }
  }
}

{
  "took" : 2,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1,
      "relation" : "eq"
    },
    "max_score" : 0.9808291,
    "hits" : [
      {
        "_index" : "product",
        "_type" : "_doc",
        "_id" : "1",
        "_score" : 0.9808291,
        "_source" : {
          "name" : "Spring Framework 2: Advance",
          "price" : 30.0,
          "description" : "Learn Spring Framework",
          "status" : "deactive",
          "quantity" : 1,
          "categories" : [
            {
              "name" : "Software"
            }
          ],
          "tags" : [
            "spring",
            "spring framework"
          ]
        }
      }
    ]
  }
}