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Set operations and refactoring and bug fixing

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@goodwanghan goodwanghan released this 04 Oct 06:09
· 363 commits to master since this release
151e653
  • Added set operations to programming interface: union, subtract, intersect
  • Added distinct to programming interface
  • Ensured partitioning follows SQL convention: groups with null keys are NOT removed
  • Switched join, union, subtract, intersect, distinct to QPD implementations, so they follow SQL convention
  • Set operations in Fugue SQL can directly operate on Fugue statemens (e.g. TRANSFORM USING t1 UNION TRANSFORM USING t2)
  • Fixed bugs
  • Added onboarding document for contributors