Auto run statements

After adding the hive data source, I found that the following statements are often run. What is the function and how to close it
select a,b,c from t1 order by a asc limit 5000

Hi @utopian
I'm quite sure it's not select a,b,c from ..., but select a from ...
Those are scan queries. See this topic on how to disable it: I want to stop auto scanning for tables in metabase