Refactor extend direction & rel data direction

[andyfengHKU]

No description provided.

[codecov]

Codecov Report

Patch coverage: 89.02% and project coverage change: -0.03 ⚠️

Comparison is base (06b1b9d) 91.75% compared to head (a51064d) 91.72%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1560      +/-   ##
==========================================
- Coverage   91.75%   91.72%   -0.03%     
==========================================
  Files         695      698       +3     
  Lines       25114    25138      +24     
==========================================
+ Hits        23043    23059      +16     
- Misses       2071     2079       +8     

Impacted Files	Coverage Δ
src/common/types/types.cpp	91.07% <ø> (-0.11%)	⬇️
src/include/catalog/catalog_structs.h	97.95% <ø> (ø)
src/include/common/types/types.h	100.00% <ø> (ø)
...c/include/parser/query/graph_pattern/rel_pattern.h	100.00% <ø> (ø)
src/include/planner/join_order_enumerator.h	100.00% <ø> (ø)
...ner/logical_plan/logical_operator/logical_extend.h	100.00% <ø> (ø)
...l_plan/logical_operator/logical_recursive_extend.h	100.00% <ø> (ø)
src/include/storage/wal/wal_record.h	36.61% <ø> (ø)
src/planner/operator/base_logical_extend.cpp	88.88% <50.00%> (-11.12%)	⬇️
src/common/rel_direction.cpp	66.66% <66.66%> (ø)
... and 13 more

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