Fix decimal column type detection for import

[MoonE]

Description

First number of decimal type is all digits, second number is the number of decimals. To check if the type should be larger the number of digits before the decimal point and after the decimal point need to be compared.

Fixes #19964

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 48.67%. Comparing base (5ec6b2f) to head (a447dc8). :warning: Report is 29 commits behind head on QA_5_2.

Additional details and impacted files

@@             Coverage Diff              @@
##             QA_5_2   #19966      +/-   ##
============================================
- Coverage     49.09%   48.67%   -0.43%     
- Complexity    17128    17131       +3     
============================================
  Files           607      607              
  Lines         72429    72435       +6     
============================================
- Hits          35560    35255     -305     
- Misses        36869    37180     +311     

Flag	Coverage Δ
recode-extension	49.53% <100.00%> (-0.61%)	:arrow_down:
unit-7.2-ubuntu-latest	49.03% <100.00%> (?)
unit-7.3-ubuntu-latest	?
unit-8.2-ubuntu-latest	49.42% <100.00%> (?)

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