Refactor DDLQueryBuilder::getColumnDefinition()

[Tigrov]

Q	A
Is bugfix?	✔️/❌
New feature?	❌
Breaks BC?	✔️/❌
Fixed issues	-

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.26%. Comparing base (df7cf71) to head (3812453).

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #320      +/-   ##
============================================
+ Coverage     99.08%   99.26%   +0.17%     
+ Complexity      183      181       -2     
============================================
  Files            15       15              
  Lines           549      547       -2     
============================================
- Hits            544      543       -1     
+ Misses            5        4       -1     

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[what-the-diff]

PR Summary

• New Feature in DDLQueryBuilder
  A new capability has been added to the DDLQueryBuilder for more functionality.

• Changes in Accessibility of getColumnDefinition Method
  The accessibility of a particular function in DDLQueryBuilder, getColumnDefinition(), has been altered from being open to all, to being confined to its class only.

• Additional Testing for DDLQueryBuilder's renameColumn Method
  More comprehensive testing has been implemented in the QueryBuilderTest class for the renameColumn() operation of DDLQueryBuilder. This covers scenarios like renaming an established column and trying to rename a column that doesn't exist within existing and non-existent tables.