initial

Author: JPryce-Aklundh

modules/ROOT/pages/expressions/index.adoc

@@ -12,4 +12,6 @@ For details and examples of specific expressions, see the following sections:
 ** xref:expressions/predicates/path-pattern-expressions.adoc[]: information about filtering queries with path pattern expressions.
 ** xref:expressions/predicates/type-predicate-expressions.adoc[]: information about how to verify the value type of a Cypher expression.
 * xref:expressions/mathematical-operators.adoc[]: `+`, `-`, `*`, `/`, `%`, `^`.
+* xref:expressions/string-operators.adoc[]: `+`, `||`
 * xref:expressions/conditional-expressions.adoc[]
+

modules/ROOT/pages/expressions/string-operators.adoc

@@ -0,0 +1,12 @@
+= String operators
+:description: Information about Cypher's string operators.
+:table-caption!:
+
+Cypher contains two functionally equivalent operators for the concatenation of `STRING` values:
+
+* `+`
+* `||`
+
+
+Using `+` to concatenate strings is functionally equivalent to using `||`.
+However, the `+` string concatenation operator is not xref:appendix/gql-conformance/index.adoc[GQL conformant].