Binding-table references

Binding tables hold records of named values. The AST recognizes [BINDING] TABLE <binding table expression>, including nested queries, VARIABLE expressions and parenthesized value expressions.

SESSION SET BINDING TABLE $rows = { RETURN 1 AS id };

Restricted runtime support

Nested-query binding-table initializers are not executed. The example above is syntax only. Driver-provided binding-table values can be assigned through supported variable expressions, but general binding-table query sources are not exposed by the runtime.

Value::BindingTable is a session value representation, not an assertion that arbitrary structured values can be bound as DataFusion scalar parameters. For executable relational composition, use SELECT FROM an independent nested query.