Cypher Language
FalkorDB supports the OpenCypher query language with proprietary extensions. Cypher is a declarative graph query language that allows you to express what data to retrieve from a graph using pattern matching, filtering, and projections.
This section provides a complete reference for all supported Cypher clauses, functions, procedures, and indexing capabilities.
See also: Data Types — Reference for all node, relationship, scalar, temporal, and collection types used in Cypher queries.
Comments
FalkorDB Cypher supports two comment styles that can be placed anywhere whitespace is allowed:
| Style | Syntax | Description |
|---|---|---|
| Single-line | // comment text |
Everything from // to the end of the line is ignored |
| Multi-line | /* comment text */ |
Everything between /* and */ is ignored (may span multiple lines) |
Multiple consecutive comments are fully supported, as are comments embedded mid-query:
// Find all people named Alice
MATCH (a:Person {name: 'Alice'})
/* Return their
friends */
RETURN a
Clauses
A Cypher query consists of one or more clauses.
- MATCH
- OPTIONAL MATCH
- WHERE
- RETURN
- ORDER BY
- SKIP
- LIMIT
- CREATE
- MERGE
- DELETE
- REMOVE
- SET
- WITH
- UNION
- UNWIND
- FOREACH
- CALL {}
Functions
See the list of available functions.
Procedures
See the list of available procedures.
Algorithms
See the list of available graph algorithms.
Indexing
See how to use indexing.
Frequently Asked Questions 5
What version of Cypher does FalkorDB support?
FalkorDB implements a subset of the OpenCypher specification (version 9) with proprietary extensions for indexing, vector search, and graph algorithms. See the Cypher coverage page for full details.
How is FalkorDB Cypher different from Neo4j Cypher?
FalkorDB supports the core OpenCypher clauses and functions but adds unique features like built-in vector indexing, full-text search via RediSearch, and native graph algorithms (PageRank, BFS, shortest paths). Some advanced Neo4j-specific features like label expressions are not yet supported.
Can I use parameterized queries in FalkorDB?
Yes. Use the CYPHER prefix to set parameters, e.g. CYPHER name='Alice' MATCH (n {name: $name}) RETURN n. Each client library also provides its own method for passing parameters safely.
Does FalkorDB support comments in Cypher queries?
Yes. FalkorDB supports single-line comments with // and multi-line comments with /* ... */. Comments can be placed anywhere whitespace is allowed.
What indexing options are available in FalkorDB?
FalkorDB supports three index types: Range indexes for exact-match and comparison filters, Full-text indexes for text search with stemming and scoring, and Vector indexes for similarity search on embeddings.