Further simplify some cases

[jcpunk]

This trims down a few cases to something that is easier to read/understand

[codecov]

Codecov Report

Merging #521 (f0e454d) into master (a4a7938) will increase coverage by 0.11%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #521      +/-   ##
==========================================
+ Coverage   83.39%   83.51%   +0.11%     
==========================================
  Files          47       47              
  Lines        3089     3081       -8     
  Branches      433      429       -4     
==========================================
- Hits         2576     2573       -3     
+ Misses        473      468       -5     
  Partials       40       40              

Flag	Coverage Δ
python-3.6	82.97% <100.00%> (+0.11%)	⬆️
python-3.9	83.13% <100.00%> (+0.11%)	⬆️
python-pypy-3.7	83.13% <100.00%> (+0.15%)	⬆️

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Impacted Files	Coverage Δ
...gine/framework/dataspace/datasources/postgresql.py	85.77% <ø> (+1.66%)	⬆️
...rc/decisionengine/framework/dataspace/datablock.py	98.82% <100.00%> (ø)
src/decisionengine/framework/dataspace/maintain.py	98.09% <100.00%> (-0.02%)	⬇️
src/decisionengine/framework/engine/de_client.py	94.69% <100.00%> (-0.10%)	⬇️

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