When you reference parts of the pattern, you do so by naming them. The names you give the different parts are called identifiers.
In this example:
START n=node(1) MATCH n-->b RETURN b
The identifiers are n
and b
.
Identifiers can be lower or upper case, and may contain underscore.
If other characters are needed, you can use the `
sign.
The same rules apply to property names.
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