QueryPlanNode
, java.io.Serializable
, java.lang.Cloneable
public static class QueryPlan.EquiJoinNode extends QueryPlan.BranchQueryPlanNode
An equi-join is the most common type of join.
At query runtime, this decides the best best way to perform the join, either by
left, right
Constructor | Description |
---|---|
EquiJoinNode(QueryPlanNode left,
QueryPlanNode right,
Variable[] left_cols,
Variable[] right_cols) |
Modifier and Type | Method | Description |
---|---|---|
java.lang.Object |
clone() |
Deep clone.
|
Table |
evaluate(QueryContext context) |
Evaluates the node and returns the result as a Table.
|
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
debugString, discoverCorrelatedVariables, discoverTableNames, left, right, titleString
public EquiJoinNode(QueryPlanNode left, QueryPlanNode right, Variable[] left_cols, Variable[] right_cols)
public Table evaluate(QueryContext context)
QueryPlanNode
public java.lang.Object clone() throws java.lang.CloneNotSupportedException
QueryPlan.BranchQueryPlanNode
clone
in interface QueryPlanNode
clone
in class QueryPlan.BranchQueryPlanNode
java.lang.CloneNotSupportedException
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