Class: Join

Defined in: packages/core/src/plan/operators/tuple/join.ts:80

A join with explicit predicates; extends CartesianProduct by filtering rows with conditions and supporting outer-join semantics via leftOuter/rightOuter.

Extends

• CartesianProduct

Constructors

Constructor

new Join(lang, left, right, conditions): Join

Defined in: packages/core/src/plan/operators/tuple/join.ts:86

Parameters

Parameter	Type	Description
lang	Lowercase<string>	-
left	PlanTupleOperator	-
right	PlanTupleOperator	-
conditions	Calculation[]	Join predicates; all must hold for a pair of rows to be included.

Returns

Join

Overrides

CartesianProduct.constructor

Properties

conditions

conditions: Calculation[]

Defined in: packages/core/src/plan/operators/tuple/join.ts:91

Join predicates; all must hold for a pair of rows to be included.

---

lang

lang: Lowercase<string>

Defined in: packages/core/src/plan/visitor.ts:42

PlanOperator.lang

Inherited from

CartesianProduct.lang

---

left

left: PlanTupleOperator

Defined in: packages/core/src/plan/operators/tuple/join.ts:21

Left input tuple stream.

Inherited from

CartesianProduct.left

---

leftOuter

leftOuter: boolean = false

Defined in: packages/core/src/plan/operators/tuple/join.ts:82

When true, unmatched rows from left are emitted with null-filled right columns.

---

parent?

optional parent?: PlanOperator

Defined in: packages/core/src/plan/visitor.ts:44

PlanOperator.parent

Inherited from

CartesianProduct.parent

---

right

right: PlanTupleOperator

Defined in: packages/core/src/plan/operators/tuple/join.ts:23

Right input tuple stream.

Inherited from

CartesianProduct.right

---

rightOuter

rightOuter: boolean = false

Defined in: packages/core/src/plan/operators/tuple/join.ts:84

When true, unmatched rows from right are emitted with null-filled left columns.

---

schema

schema: ASTIdentifier[]

Defined in: packages/core/src/plan/visitor.ts:38

Ordered list of attribute identifiers produced by this operator.

Inherited from

CartesianProduct.schema

---

schemaSet

schemaSet: IdSet

Defined in: packages/core/src/plan/visitor.ts:40

Trie-backed set of the same paths as schema; used for O(k) membership tests.

Inherited from

CartesianProduct.schemaSet

---

validateSingleValue

validateSingleValue: boolean = false

Defined in: packages/core/src/plan/operators/tuple/join.ts:16

if true, the right is not allowed to return multiple values per one left value

Inherited from

CartesianProduct.validateSingleValue

Methods

accept()

accept<Ret, Arg>(visitors, arg?): Ret

Defined in: packages/core/src/plan/operators/tuple/join.ts:98

PlanOperator.accept

Type Parameters

Type Parameter
Ret
Arg

Parameters

Parameter	Type
visitors	Record<string, PlanVisitor<Ret, Arg>>
arg?	Arg

Returns

Ret

Overrides

CartesianProduct.accept

---

addToSchema()

addToSchema(item): void

Defined in: packages/core/src/plan/visitor.ts:57

will preserve object references

Parameters

Parameter	Type
item	IdSet | ASTIdentifier | ASTIdentifier[]

Returns

void

Inherited from

CartesianProduct.addToSchema

---

clearSchema()

clearSchema(): void

Defined in: packages/core/src/plan/visitor.ts:102

will preserve object references

Returns

void

Inherited from

CartesianProduct.clearSchema

---

clone()

clone(): Join

Defined in: packages/core/src/plan/operators/tuple/join.ts:126

PlanOperator.clone

Returns

Join

Overrides

CartesianProduct.clone

---

getChildren()

getChildren(): PlanOperator[]

Defined in: packages/core/src/plan/operators/tuple/join.ts:122

PlanOperator.getChildren

Returns

PlanOperator[]

Overrides

CartesianProduct.getChildren

---

getDependencies()

getDependencies(): IdSet

Defined in: packages/core/src/plan/visitor.ts:113

PlanOperator.getDependencies

Returns

IdSet

Inherited from

CartesianProduct.getDependencies

---

removeFromSchema()

removeFromSchema(item): boolean

Defined in: packages/core/src/plan/visitor.ts:80

will preserve object references

Parameters

Parameter	Type
item	IdSet | ASTIdentifier | ASTIdentifier[]

Returns

boolean

Inherited from

CartesianProduct.removeFromSchema

---

replaceChild()

replaceChild(current, replacement): void

Defined in: packages/core/src/plan/operators/tuple/join.ts:105

PlanOperator.replaceChild

Parameters

Parameter	Type
current	PlanOperator
replacement	PlanOperator

Returns

void

Overrides

CartesianProduct.replaceChild