public static class QueryPlan.FunctionalSelectNode extends QueryPlan.SingleQueryPlanNode
The given expression MUST be of the form; 'function_expression' 'operator' 'constant'
child
Constructor and Description |
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FunctionalSelectNode(QueryPlanNode child,
Expression exp) |
Modifier and Type | Method and Description |
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Object |
clone()
Deep clone.
|
ArrayList |
discoverCorrelatedVariables(int level,
ArrayList list)
Default implementation that discovers correlated variables for the
given offset level.
|
ArrayList |
discoverTableNames(ArrayList list)
Default implementation delegates responsibility to child.
|
Table |
evaluate(QueryContext context)
Evaluates the node and returns the result as a Table.
|
child, debugString, titleString
public FunctionalSelectNode(QueryPlanNode child, Expression exp)
public Table evaluate(QueryContext context)
QueryPlanNode
public ArrayList discoverTableNames(ArrayList list)
QueryPlan.SingleQueryPlanNode
discoverTableNames
in interface QueryPlanNode
discoverTableNames
in class QueryPlan.SingleQueryPlanNode
public ArrayList discoverCorrelatedVariables(int level, ArrayList list)
QueryPlan.SingleQueryPlanNode
discoverCorrelatedVariables
in interface QueryPlanNode
discoverCorrelatedVariables
in class QueryPlan.SingleQueryPlanNode
public Object clone() throws CloneNotSupportedException
QueryPlan.SingleQueryPlanNode
clone
in interface QueryPlanNode
clone
in class QueryPlan.SingleQueryPlanNode
CloneNotSupportedException
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