Method with_mut_schema

crates/table/src/table.rs:1403–1405

Runs a mutation on the [`TableSchema`] of this table. This uses a clone-on-write mechanism. If none but `self` refers to the schema, then the mutation will be in-place. Otherwise, the schema must be cloned, mutated, and then the cloned version is written back to the table.

(&mut self, with: impl FnOnce(&mut TableSchema) -> R)

    /// Otherwise, the schema must be cloned, mutated,
    /// and then the cloned version is written back to the table.
    pub fn with_mut_schema<R>(&mut self, with: impl FnOnce(&mut TableSchema) -> R) -> R {
        with(Arc::make_mut(&mut self.schema))
    }

    /// Runs a mutation on the [`TableSchema`] of this table
    /// and then sets the schema of `other` to that of `self`.