HashSetOp
Short Description
The HashSetOp node handles set operations as SetOp does and uses a hash table to carry out intersections
Detailed Description​
The HashSetOp node handles set operations as does SetOp, but uses a hash table to carry out intersections. This can be seen in INTERSECT and EXCEPT queries.
Additional Links​
- PostgreSQL Documentation - Using Explain
- pgAnalyze - Explain
- eTutorials - Understanding How PostgreSQL Executes a Query
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