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  1. Couchbase Server
  2. MB-39066

FlexIndex: FlexQuery with type = "emp" and type = "emp" gives 0 results

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Details

    • Improvement
    • Resolution: Won't Fix
    • Major
    • 7.0.0
    • Cheshire-Cat
    • fts
    • 1

    Description

      Build: 7.0.0-1939

      • Load dataset attached
      • Create fts index with below:

        {
          "type": "fulltext-index",
          "name": "custom_index",
          "uuid": "54b8538f8737782f",
          "sourceType": "gocbcore",
          "sourceName": "default",
          "sourceUUID": "a1e2de9aa61b2b306e6738448e25e42c",
          "planParams": {
            "maxPartitionsPerPIndex": 171
          },
          "params": {
            "doc_config": {
              "docid_prefix_delim": "",
              "docid_regexp": "",
              "mode": "type_field",
              "type_field": "type"
            },
            "mapping": {
              "analysis": {},
              "default_analyzer": "standard",
              "default_datetime_parser": "dateTimeOptional",
              "default_field": "_all",
              "default_mapping": {
                "dynamic": true,
                "enabled": false
              },
              "default_type": "_default",
              "docvalues_dynamic": true,
              "index_dynamic": true,
              "store_dynamic": false,
              "type_field": "type",
              "types": {
                "emp": {
                  "dynamic": false,
                  "enabled": true,
                  "properties": {
                    "is_manager": {
                      "dynamic": false,
                      "enabled": true,
                      "fields": [
                        {
                          "include_in_all": true,
                          "include_term_vectors": true,
                          "index": true,
                          "name": "is_manager",
                          "type": "boolean"
                        }
                      ]
                    },
                    "join_date": {
                      "dynamic": false,
                      "enabled": true,
                      "fields": [
                        {
                          "include_in_all": true,
                          "include_term_vectors": true,
                          "index": true,
                          "name": "join_date",
                          "type": "datetime"
                        }
                      ]
                    },
                    "manages": {
                      "dynamic": false,
                      "enabled": true,
                      "properties": {
                        "team_size": {
                          "dynamic": false,
                          "enabled": true,
                          "fields": [
                            {
                              "include_in_all": true,
                              "include_term_vectors": true,
                              "index": true,
                              "name": "team_size",
                              "type": "number"
                            }
                          ]
                        }
                      }
                    },
                    "mutated": {
                      "dynamic": false,
                      "enabled": true,
                      "fields": [
                        {
                          "include_in_all": true,
                          "include_term_vectors": true,
                          "index": true,
                          "name": "mutated",
                          "type": "number"
                        }
                      ]
                    },
                    "name": {
                      "dynamic": false,
                      "enabled": true,
                      "fields": [
                        {
                          "analyzer": "keyword",
                          "include_in_all": true,
                          "include_term_vectors": true,
                          "index": true,
                          "name": "name",
                          "type": "text"
                        }
                      ]
                    }
                  }
                }
              }
            },
            "store": {
              "indexType": "scorch",
              "mossStoreOptions": {}
            }
          },
          "sourceParams": {}
        }
        

      • Create GSI primary index
      • For the Flex query with type = "emp" and type = "emp" gives 0 results where from GSI it gives 1000 results

        select meta().id from default USE INDEX (  USING FTS, USING GSI) where type = "emp" and type = "emp"
        

      • Explain plan

        {
            "#operator": "Sequence",
            "~children": [
                {
                    "#operator": "IndexFtsSearch",
                    "covers": [
                        "cover ((((`default`.`type`) = \"emp\") and ((`default`.`type`) = \"emp\")))",
                        "cover ((meta(`default`).`id`))"
                    ],
                    "index": "custom_index",
                    "index_id": "54b8538f8737782f",
                    "keyspace": "default",
                    "namespace": "default",
                    "search_info": {
                        "field": "\"\"",
                        "options": "{\"index\": \"custom_index\"}",
                        "outname": "out",
                        "query": "{\"query\": null, \"score\": \"none\"}"
                    },
                    "using": "fts"
                },
                {
                    "#operator": "Parallel",
                    "~child": {
                        "#operator": "Sequence",
                        "~children": [
                            {
                                "#operator": "Filter",
                                "condition": "cover ((((`default`.`type`) = \"emp\") and ((`default`.`type`) = \"emp\")))"
                            },
                            {
                                "#operator": "InitialProject",
                                "result_terms": [
                                    {
                                        "expr": "cover ((meta(`default`).`id`))"
                                    }
                                ]
                            }
                        ]
                    }
                }
            ]
        }
        

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              abhinav Abhi Dangeti
              girish.benakappa Girish Benakappa
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              Dates

                Created:
                Updated:
                Resolved:

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