Tanya-W opened a new pull request, #14211:
URL: https://github.com/apache/doris/pull/14211

   # Proposed changes
   
   Issue Number: Step1.3 of [DSIP-023: Add inverted index for full text 
search](https://cwiki.apache.org/confluence/display/DORIS/DSIP-023%3A+Add+inverted+index+for+full+text+search?src=contextnavpagetreemode)
   
   ## Problem summary
   Introduce a fulltext query syntax with keyword `MATCH`, `MATCH_ANY`, 
`MATCH_ALL`.
   - `MATCH_ANY` means hit one of multiple terms, will return true
   - `MATCH_ALL` means must hit all of  multiple terms, will return true
   - `MATCH` is equivalent to `MATCH_ ANY`
   
   match syntax check list:
   - string type inverted index column,  
   - and inverted index set `STANDARD` or `ENGLISH` parser
   
   for example:
   ```
   -- create table with INVERTED index 
   
   CREATE TABLE httplogs (
     ts datetime,
     clientip varchar(20),
     request string,
     status smallint,
     size int,
     INDEX idx_size (size) USING INVERTED,
     INDEX idx_clientip (clientip) USING INVERTED PROPERTIES("parser"="none"),
     INDEX idx_request (request) USING INVERTED PROPERTIES("parser"="standard")
   )
   DUPLICATE KEY(ts)
   DISTRIBUTED BY RANDOM BUCKETS 10;
   
   -- fulltext search
   - check ok: 
   select * from httplogs where request match_any 'GET'; 
   select * from httplogs where request match 'GET'; 
   select * from httplogs where request match_any 'GET images'; 
   select * from httplogs where request match_all 'GET images'; 
   
   - check failed:
   select * from httplogs where clientip match_any '127'; 
   select * from httplogs where status match_any '10'; 
   select * from httplogs where size match_any '10'; 
   
   ```
   
   ## Checklist(Required)
   
   1. Does it affect the original behavior: 
       - [ ] Yes
       - [x] No
       - [ ] I don't know
   2. Has unit tests been added:
       - [ ] Yes
       - [x] No
       - [ ] No Need
   3. Has document been added or modified:
       - [ ] Yes
       - [x] No
       - [ ] No Need
   4. Does it need to update dependencies:
       - [ ] Yes
       - [x] No
   5. Are there any changes that cannot be rolled back:
       - [ ] Yes (If Yes, please explain WHY)
       - [x] No
   
   ## Further comments
   
   If this is a relatively large or complex change, kick off the discussion at 
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you 
chose the solution you did and what alternatives you considered, etc...
   
   


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