![[Google Cloud Documentation]](https://www.gstatic.com/devrel-devsite/prod/v0f3a5b8b76e4a120372a69044e02756e703b6140f9f1812c6e4a0407b19864b7/clouddocs/images/lockup_full_color.svg){kind=link}
![[]](https://docs.cloud.google.com/_static/clouddocs/images/icons/products/bigquery-color.svg){kind=link}
Preview
This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the Service Specific Terms. Pre-GA products and features are available "as is" and might have limited support. For more information, see the launch stage descriptions.
Note: To provide feedback or request support for this feature, send an email to bq-graph-preview-support@google.com.Graph Query Language (GQL) supports all GoogleSQL data types, including the following GQL-specific data type:
Graph data types list
| Name | Summary |
|---|---|
| Graph element type |
An element in a property graph. Can be a GRAPH_NODE or
GRAPH_EDGE.SQL type name: GRAPH_ELEMENT
|
| Graph path type |
A path in a property graph. SQL type name: GRAPH_PATH
|
Graph element type
| Name | Description |
|---|---|
GRAPH_ELEMENT |
An element in a property graph. |
A variable with a GRAPH_ELEMENT type is produced by a graph query.
The generated type has this format:
GRAPH_ELEMENT<T>
A graph element is either a node or an edge, representing data from a matching node or edge table based on its label. Each graph element holds a set of properties that can be accessed with a case-insensitive name, similar to fields of a struct.
Example
In the following example, n represents a graph element in the
FinGraph property graph:
GRAPH graph_db.FinGraph
MATCH (n:Person)
RETURN n.name
In the following example, the TYPEOF function is used to inspect the
set of properties defined in the graph element type.
GRAPH graph_db.FinGraph
MATCH (n:Person)
RETURN TYPEOF(n) AS t
LIMIT 1
/*--------------------------------------------------------+
| t |
+--------------------------------------------------------+
| GRAPH_NODE(myproject.graph_db.FinGraph)<id INT64, ...> |
+--------------------------------------------------------*/
Graph path type
| Name | Description |
|---|---|
GRAPH_PATH |
A path in a property graph. |
The graph path data type represents a sequence of nodes interleaved with edges and has this format:
GRAPH_PATH<NODE_TYPE, EDGE_TYPE>