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Add docs for using exclamation mark short hand in types #764

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Nov 21, 2023
Merged

Add docs for using exclamation mark short hand in types #764

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3ebafce
Add docs for using exclamation mark short hand in types
gem-neo4j Oct 11, 2023
e77fac4
PR updates
gem-neo4j Oct 20, 2023
fd7efe0
Merge branch 'dev' into dev_allow_shorthand_for_not_null_types
JPryce-Aklundh Nov 21, 2023
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21 changes: 20 additions & 1 deletion modules/ROOT/pages/deprecations-additions-removals-compatibility.adoc
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Expand Up @@ -17,7 +17,26 @@ This section lists all of the features that have been removed, deprecated, added
Replacement syntax for deprecated and removed features are also indicated.

[[cypher-deprecations-additions-removals-5.14]]
== Version 5.14
== Neo4j 5.14

=== Updated features

[cols="2", options="header"]
|===
| Feature
| Details
a|
label:functionality[]
label:updated[]

[source, cypher, role="noheader"]
----
IS :: INTEGER!
----

| Extended xref::values-and-types/property-structural-constructed.adoc#types-synonyms[type] syntax to allow an exclamation mark `!` as a synonym for `NOT NULL`.

|===

=== New features

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1 change: 1 addition & 0 deletions modules/ROOT/pages/values-and-types/property-structural-constructed.adoc
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Expand Up @@ -105,6 +105,7 @@ However, not all types can be used in all places.
|===

All Cypher types contain the `null` value. To make them not nullable, `NOT NULL` can be appended to the end of the type (e.g. `BOOLEAN NOT NULL`, `LIST<FLOAT NOT NULL>`).
A shorthand syntax equivalent, introduced in Neo4j 5.14, for `NOT NULL` is to use an exclamation mark `!` (e.g. `INTEGER!`, `LIST<STRING!>`).
Note that closed dynamic types (`INNER_TYPE_1 | INNER_TYPE_2...`) cannot be appended with `NOT NULL`: all inner types must be nullable, or all appended with `NOT NULL`.

[[type-normalization]]
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