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Add documentation for size() of vector values. #1452

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rsill-neo4j merged 2 commits into from
Feb 4, 2026
Merged

Add documentation for size() of vector values. #1452

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4d8ec53
Add documentation for size() of vector values.
Lojjs Jan 16, 2026
07ced81
Merge branch 'dev' into surf-557-update-size-documentation-for-cypher-25
rsill-neo4j Feb 4, 2026
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30 changes: 28 additions & 2 deletions modules/ROOT/pages/functions/scalar.adoc
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Expand Up @@ -709,9 +709,9 @@ A randomly-generated UUID is returned.
.Details
|===
| *Syntax* 3+| `size(input)`
| *Description* 3+| Returns the number of items in a `LIST<ANY>` or the number of Unicode characters in a `STRING`.
| *Description* 3+| Returns the number of items in a `LIST<ANY>`, the number of Unicode characters in a `STRING` or the dimension of a `VECTOR`.
.2+| *Arguments* | *Name* | *Type* | *Description*
| `input` | `STRING \| LIST<ANY>` | A value whose length is to be calculated.
| `input` | `STRING \| LIST<ANY> \| VECTOR` | A value whose length is to be calculated.
| *Returns* 3+| `INTEGER`
|===

Expand Down Expand Up @@ -802,6 +802,32 @@ The number of characters in the `STRING` `'Charlie'` is returned.

======

.+size()+ applied to vectors
======

.Query
[source, cypher]
----
RETURN size(vector([1, 2, 3], 3, INTEGER8)) AS size
----

.Result
[role="queryresult",options="header,footer",cols="1*<m"]
|===

| size
| 3
1+d|Rows: 1

|===

The dimension of the vector is returned.

======

[TIP]
You can also use the xref:functions/vector.adoc#functions-vector_dimension_count[`vector_dimension_count()`] function to return the dimension of a `VECTOR` value.


[[functions-startnode]]
== startNode()
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