[CBRD-24285] Problem of sort limit optimization without checking not null of foreign key

[shparkcubrid]

http://jira.cubrid.org/browse/CBRD-24285

check not null of fk when sort limit optimization

[codecov-commenter]

Codecov Report

Merging #3509 (ca65339) into develop (e66683a) will decrease coverage by 15.84%.
The diff coverage is 90.47%.

❗ Current head ca65339 differs from pull request most recent head 2a903e3. Consider uploading reports for the commit 2a903e3 to get more accurate results

@@             Coverage Diff              @@
##           develop    #3509       +/-   ##
============================================
- Coverage    52.23%   36.39%   -15.85%     
============================================
  Files          515      516        +1     
  Lines       396197   399417     +3220     
============================================
- Hits        206970   145354    -61616     
- Misses      189227   254063    +64836     

Impacted Files	Coverage Δ
src/optimizer/query_graph.c	67.01% <90.47%> (-16.28%)	⬇️
src/xasl/xasl_analytic.cpp	0.00% <0.00%> (-100.00%)	⬇️
src/object/object_printer.hpp	0.00% <0.00%> (-100.00%)	⬇️
src/base/memory_reference_store.hpp	0.00% <0.00%> (-94.60%)	⬇️
src/base/memory_private_allocator.hpp	0.00% <0.00%> (-86.67%)	⬇️
src/query/scan_json_table.cpp	0.00% <0.00%> (-83.11%)	⬇️
src/xasl/access_spec.hpp	18.18% <0.00%> (-81.82%)	⬇️
src/object/lob_locator.cpp	0.00% <0.00%> (-79.17%)	⬇️
src/compat/db_json_path.cpp	0.00% <0.00%> (-78.07%)	⬇️
src/compat/db_json.cpp	0.00% <0.00%> (-74.82%)	⬇️
... and 246 more

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