Currently using Elastic Search for inventory search feature implementation and trying to build query logic.
Search requirements:
- User shall be able to search for words in ProductName, BrandName and description fields
- Match query is used to search on ProductName fields
- Multi_Match query is used to search any input words in BrandName and Description fields
- System to return search results including user input all words or either words (Input search words are separated using space)
- Wildcard quey is used to search all the words in Description
- Multiple bool with must and should is used to search all or either words to fetch results
Logic: MUST (Wildcard Word1 AND Word2 on Field:description) OR (SHOULD (Match "Word1 Word2" on Field:productName) OR (multi_match Word1 Boost 2.0 on Fields:["description","brandName"]) OR (Match Word2 on Fields:["description","brandName"]))
Inventory Index Mappings reference:
{"inventory":{"mappings":{"_routing":{"required":true},"properties":{"productName":{"type":"text","fields":{"keyword":{"type":"keyword","normalizer":"lowercase"}}},"brandName":{"type":"text","fields":{"keyword":{"type":"keyword","normalizer":"lowercase"}}},"description":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}}}}}}
Search query for user input "Dove 3.75 oz":
POST inventory/_search{"from":0,"query":{"bool":{"must":[{"bool":{"should":[{"match":{"productName":{"operator":"and","query":"dove 3.75 oz"}}},{"multi_match":{"fields":["description","brandName"],"query":"dove","boost":2.0}},{"multi_match":{"fields":["description","allBrandNames"],"query":"3.75"}},{"multi_match":{"fields":["description","allBrandNames"],"query":"oz"}},{"bool":{"must":[{"wildcard":{"description":{"value":"*dove"}}},{"wildcard":{"description":{"value":"*3.75"}}},{"wildcard":{"description":{"value":"*oz*"}}}]}}]}}]}},"size":20,"sort":[{"_score":{"order":"desc"}}]}
Question: Is above compound query good approach or any different query options available?