java.lang.Object
- com.mckoi.database.QueryPlan

```
public class QueryPlan
extends java.lang.Object
```
Various helper methods for constructing a plan tree, and the plan node implementations themselves.

Author:

Tobias Downer

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`QueryPlan.BranchQueryPlanNode`	A QueryPlanNode that is a branch with two child nodes.
`static class`	`QueryPlan.CachePointNode`	A cache point node that only evaluates the child if the result can not be found in the cache with the given unique id.
`static class`	`QueryPlan.CompositeNode`	A branch node for performing a composite function on two child nodes.
`static class`	`QueryPlan.ConstantSelectNode`	The node for evaluating an expression that contains entirely constant values (no variables).
`static class`	`QueryPlan.CreateFunctionsNode`	The node for merging the child node with a set of new function columns over the entire result.
`static class`	`QueryPlan.DistinctNode`	The node for performing a distinct operation on the given columns of the child node.
`static class`	`QueryPlan.EquiJoinNode`	A branch node for equi-joining two tables together given two sets of columns.
`static class`	`QueryPlan.ExhaustiveSelectNode`	The node for performing a exhaustive select operation on the child node.
`static class`	`QueryPlan.FetchTableNode`	The node for fetching a table from the current transaction.
`static class`	`QueryPlan.FetchViewNode`	The node that fetches a view from the current connection.
`static class`	`QueryPlan.FunctionalSelectNode`	The node for performing a functional select operation on the child node.
`static class`	`QueryPlan.GroupNode`	The node for performing a grouping operation on the columns of the child node.
`static class`	`QueryPlan.JoinNode`	A branch node for a non-equi join between two tables.
`static class`	`QueryPlan.LeftOuterJoinNode`	A branch node for a left outer join.
`static class`	`QueryPlan.LogicalUnionNode`	A branch node for a logical union of two tables of identical types.
`static class`	`QueryPlan.MarkerNode`	A marker node that takes the result of a child and marks it as a name that can later be retrieved.
`static class`	`QueryPlan.MultiColumnEquiSelectNode`	The node for performing an equi-select on a group of columns of the child node.
`static class`	`QueryPlan.NaturalJoinNode`	A branch node for naturally joining two tables together.
`static class`	`QueryPlan.NonCorrelatedAnyAllNode`	A branch node for a non-correlated ANY or ALL sub-query evaluation.
`static class`	`QueryPlan.RangeSelectNode`	The node for performing a simple indexed query on a single column of the child node.
`static class`	`QueryPlan.SimplePatternSelectNode`	The node for evaluating a simple pattern search on a table which includes a single left hand variable or constant, a pattern type (LIKE, NOT LIKE or REGEXP), and a right hand constant (eg.
`static class`	`QueryPlan.SimpleSelectNode`	The node for performing a simple select operation on a table.
`static class`	`QueryPlan.SingleQueryPlanNode`	A QueryPlanNode with a single child.
`static class`	`QueryPlan.SingleRowTableNode`	A node for creating a table with a single row.
`static class`	`QueryPlan.SortNode`	The node for performing a sort operation on the given columns of the child node.
`static class`	`QueryPlan.SubsetNode`	The node for finding a subset and renaming the columns of the results in the child node.

Constructor Summary

Constructors
Constructor Description

QueryPlan()

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - QueryPlan
```
public QueryPlan()
```

Class QueryPlan

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

QueryPlan