Commits on May 21, 2023

1. New options for analyze-tables - refs #544 …

   This change adds three new options and modifies the `analyze_tables` function and `analyze_column` method in the `cli.py` and `db.py` modules respectively. The new options are `common_limit`, `no_most`, and `no_least`.
   
   The `common_limit` option specifies how many common values should be returned by `analyze_column` method, by default it's set to 10. The `no_most` and `no_least` options, when set to True, skip returning the most and least common values, respectively.
   
   The `analyze_tables` function was modified to pass the new options to the `_analyze` method, and the `analyze_column` method in the `db.py` module was modified to use the newly added options. Now, when `analyze_column` is called, it checks if `most_common` or `least_common` options are set to True before running the corresponding query. If the `num_distinct` value is less than or equal to `common_limit`, it doesn't run the least common query. The results from the most and least common queries are sorted before being returned.

   

   simonw committed May 21, 2023
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2. Docs for --no-most --no-least --common-limit, refs #544

   

   simonw committed May 21, 2023
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3. Tests and docs for new analyze_column() parameters, refs #544

   

   simonw committed May 21, 2023
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4. Tests for --common-limit, --no-most, --no-least, refs #544

   

   simonw committed May 21, 2023
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