Dgraph auto increment id with DQL

[matthewmcneely]

Check out the @if directive. Very common use case that it solves.

Conditional Upsert - Mutations

The upsert block also allows specifying conditional mutation blocks using an @if directive. The mutation is executed only when the specified condition is true. If the condition is false, the mutation is silently ignored. The general structure of Conditional Upsert looks like as follows: upsert { query <query block> [fragment <fragment block>] mutation [@if(<condition>)] <mutation block 1> [mutation [@if(<condition>)] <mutation block 2>] ... } The @if directive accepts a condition on…