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Implement altering column with SET DEFAULT and DROP DEFAULT #152

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Implement altering column with SET DEFAULT and DROP DEFAULT #152

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Commits on Aug 15, 2024

  1. Update CHANGE COLUMN logic to execute a callback for each column 

    The CHANGE COLUMN logic can be extracted to a reusable method now. I'm only keeping
the changes in a separate commit for a more useful diff.

The update column callback can be used to modify any columns. Since it is also provided with
the old column definition, it will enable column-modifying statements withtout a full column
definition (like SET/DROP default). In the future, it should also unlock implementing expressions
like MODIFY COLUMN and DROP COLUMN and enable modifying multiple columns at once
to avoid unnecessary table copying.
    @JanJakes
    JanJakes committed Aug 15, 2024
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  2. Extract CHANGE COLUMN logic to a private method 

    This completes the changes in the previous commit.
    @JanJakes
    JanJakes committed Aug 15, 2024
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  3. Implement altering column with SET DEFAULT and DROP DEFAULT

    @JanJakes
    JanJakes committed Aug 15, 2024
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