FlexIndex: FlexQuery not returning right results when the query has field which is not indexed with OR operator

Build: 7.0.0-2016

• Load dataset attached
• Create fts index with below, with only name field with keyword analyzer:

  {

  "type": "fulltext-index",

  "name": "custom_index",

  "uuid": "76f7ca8314e41ed3",

  "sourceType": "gocbcore",

  "sourceName": "default",

  "sourceUUID": "291409e36b93f9299a862249ba874a90",

  "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": {

  "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": {}

  }

• For the below Flex query, Number of results returned is 14, but expecting all the docs resturned as all the docs are with mutated = 0 and type "emp"

  select meta().id from default USE INDEX (USING FTS, USING GSI) where type = "emp" and ( ( name like "Kagami%") OR (mutated = 0)) ORDER BY meta().id ASC

• Explain plan

  {

  "#operator": "Sequence",

  "~children": [

  {

  "#operator": "Sequence",

  "~children": [

  {

  "#operator": "IndexFtsSearch",

  "index": "custom_index",

  "index_id": "76f7ca8314e41ed3",

  "keyspace": "default",

  "namespace": "default",

  "search_info": {

  "field": "\"\"",

  "options": "{\"index\": \"custom_index\"}",

  "outname": "out",

  "query": "{\"query\": {\"field\": \"name\", \"inclusive_max\": false, \"inclusive_min\": true, \"max\": \"Kagamj\", \"min\": \"Kagami\"}, \"score\": \"none\"}"

  },

  "using": "fts"

  },

  {

  "#operator": "Fetch",

  "keyspace": "default",

  "namespace": "default"

  },

  {

  "#operator": "Parallel",

  "~child": {

  "#operator": "Sequence",

  "~children": [

  {

  "#operator": "Filter",

  "condition": "(((`default`.`type`) = \"emp\") and (((`default`.`name`) like \"Kagami%\") or ((`default`.`mutated`) = 0)))"

  },

  {

  "#operator": "InitialProject",

  "result_terms": [

  {

  "expr": "(meta(`default`).`id`)"

  }

  ]

  }

  ]

  }

  }

  ]

  },

  {

  "#operator": "Order",

  "sort_terms": [

  {

  "expr": "(meta(`default`).`id`)"

  }

  ]

  }

  ]

  }