primary key

Related topics

• primary key is part of queue From the official documentation: “Every queue must define a primary key composed of one or more key columns, and exactly one `Payload` column. All user-defined columns other than `Payload` must be part of the primary key. For more information, see [Spanner queues overview](/spanner/docs/queues/queues-overview).”
• Table interleaving depends on primary key From the official documentation: “For interleaving, every table must have a primary key.”