weizhengte opened a new pull request, #11030:
URL: https://github.com/apache/doris/pull/11030

   # Proposed changes
   
   This pr mainly to supplement the syntax of the previous pr(#8861), it 
supports users to manually inject statistics, including table, partition, and 
column statistics.
   
   Modify table or partition statistics:
   `
   ALTER TABLE table_name
   SET STATS ('k1' = 'v1', ...) [ PARTITIONS(p_name1, p_name2...) ]
   `
   
   Modify column statistics:
   `
   ALTER TABLE table_name MODIFY COLUMN columnName
   SET STATS ('k1' = 'v1', ...) [ PARTITIONS(p_name1, p_name2...) ]
   `
   
   Some notes:
   - Only support statistics injected into olap type tables.
   - Statistics injected into temporary partitions are not supported.
   - When injecting statistics, if it is a partitioned table, users need to 
specify a partition name.
   - If multiple partitions are specified, the same stats will be injected on 
multiple partitions.
   - The current code also has mock statistics @zhengshij
   
   
   Issue Number: close #xxx
   
   ## Problem Summary:
   
   Describe the overview of changes.
   
   ## Checklist(Required)
   
   1. Does it affect the original behavior: (Yes/No/I Don't know)
   2. Has unit tests been added: (Yes/No/No Need)
   3. Has document been added or modified: (Yes/No/No Need)
   4. Does it need to update dependencies: (Yes/No)
   5. Are there any changes that cannot be rolled back: (Yes/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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