Module ast 

Abstract Syntax Tree definitions for Cypher query language

Represents the parsed structure of Cypher queries including:

• Pattern matching (MATCH, OPTIONAL MATCH)
• Filtering (WHERE)
• Projections (RETURN, WITH)
• Mutations (CREATE, MERGE, DELETE, SET)
• Aggregations and ordering
• Hyperedge support for N-ary relationships

Structs

CreateClause

CREATE clause for creating nodes and relationships

DeleteClause

DELETE clause

HyperedgePattern

Hyperedge pattern for N-ary relationships Example: (person)-[r:TRANSACTION]->(account1, account2, merchant)

MatchClause

MATCH clause for pattern matching

MergeClause

MERGE clause for create-or-match

NodePattern

Node pattern: (variable:Label {property: value})

OrderBy

ORDER BY clause

OrderByItem

PathPattern

Path pattern: p = (a)-[*]->(b)

Query

Top-level query representation

RelationshipPattern

Relationship pattern: [variable:Type {properties}]

RelationshipRange

Relationship range for path queries: [*min..max]

RemoveClause

REMOVE clause for removing properties or labels

ReturnClause

RETURN clause for projection

ReturnItem

Return item: expression AS alias

SetClause

SET clause for updating properties

WhereClause

WHERE clause for filtering

WithClause

WITH clause for chaining queries

Enums

AggregationFunction

Aggregation functions

BinaryOperator

Binary operators

Direction

Relationship direction

Expression

Expression tree

Pattern

Pattern matching expressions

RemoveItem

SetItem

Statement

Individual query statement

UnaryOperator

Unary operators

Type Aliases

PropertyMap

Property map: {key: value, …}