Updates for PostgreSQL 17.

[sokolcati]

1. Add patches for PostgreSQL 17;
2. Add alternative output to python test due to EXPLAIN output change. See fd0398fcb099.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 90.77%. Comparing base (90399a9) to head (1230ab0). Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #56      +/-   ##
==========================================
- Coverage   91.06%   90.77%   -0.30%     
==========================================
  Files          10       10              
  Lines         739      748       +9     
==========================================
+ Hits          673      679       +6     
- Misses         66       69       +3     

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