Change temporary tables' schema and adjust tests

[brucosper]

No description provided.

[codecov-commenter]

Codecov Report

Merging #128 (e5ed5b4) into dev (dfd01e3) will increase coverage by 0.01%.
The diff coverage is 90.90%.

@@            Coverage Diff             @@
##              dev     #128      +/-   ##
==========================================
+ Coverage   80.22%   80.23%   +0.01%     
==========================================
  Files          25       25              
  Lines        1345     1346       +1     
  Branches      269      269              
==========================================
+ Hits         1079     1080       +1     
+ Misses        234      233       -1     
- Partials       32       33       +1     

Impacted Files	Coverage Δ
api/resources/summarization_gene_expression.py	41.80% <80.00%> (ø)
api/models/summarization.py	100.00% <100.00%> (ø)
api/resources/api_manager.py	67.88% <100.00%> (+0.61%)	⬆️
api/resources/efp_image.py	95.08% <0.00%> (-1.64%)	⬇️

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