Further constrain tablespace

[jcpunk]

As we try to hunt down #458 it is clear these additional constraints are needed for our data model.

[codecov[bot]]

Codecov Report

Merging #472 (ef02617) into master (94c1411) will increase coverage by 0.00%. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #472   +/-   ##
=======================================
  Coverage   93.52%   93.53%           
=======================================
  Files          43       43           
  Lines        2703     2705    +2     
  Branches      384      384           
=======================================
+ Hits         2528     2530    +2     
  Misses        135      135           
  Partials       40       40           

Flag	Coverage Δ
python-3.6	92.87% <100.00%> (+<0.01%)	:arrow_up:
python-3.9	92.97% <100.00%> (+<0.01%)	:arrow_up:
python-pypy-3.7	93.02% <100.00%> (-0.22%)	:arrow_down:

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Impacted Files	Coverage Δ
...k/dataspace/datasources/sqlalchemy_ds/db_schema.py	100.00% <100.00%> (ø)
...ecisionengine/framework/taskmanager/TaskManager.py	96.78% <0.00%> (+0.01%)	:arrow_up:
...rc/decisionengine/framework/dataspace/dataspace.py	88.50% <0.00%> (+0.13%)	:arrow_up:

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[StevenCTimm]

This appears to operate successfully in the dev decision engine. Has run stably for quite some time. Will leave legality of the code to others to review.

[mambelli]

Just curious. Did you remove the fillfactor settings because we discussed that we should not update the data?