Method pre_visit_statement

datafusion/sql/src/resolve.rs:121–159

(&mut self, statement: &Statement)

    }

    fn pre_visit_statement(&mut self, statement: &Statement) -> ControlFlow<Self::Break> {
        if let Statement::ShowCreate {
            obj_type: ShowCreateObject::Table | ShowCreateObject::View,
            obj_name,
        } = statement
        {
            self.insert_relation(obj_name)?;
        }

        // SHOW statements will later be rewritten into a SELECT from the information_schema
        let requires_information_schema = matches!(
            statement,
            Statement::ShowFunctions { .. }
                | Statement::ShowVariable { .. }
                | Statement::ShowStatus { .. }
                | Statement::ShowVariables { .. }
                | Statement::ShowCreate { .. }
                | Statement::ShowColumns { .. }
                | Statement::ShowTables { .. }
                | Statement::ShowCollation { .. }
        );
        if requires_information_schema {
            for s in INFORMATION_SCHEMA_TABLES {
                // Information schema references are synthesized here, so convert directly.
                let obj = ObjectName::from(vec![
                    Ident::new(INFORMATION_SCHEMA),
                    Ident::new(*s),
                ]);
                match object_name_to_table_reference(obj, self.enable_ident_normalization)
                {
                    Ok(tbl_ref) => {
                        self.relations.insert(tbl_ref);
                    }
                    Err(e) => return ControlFlow::Break(e),
                }
            }
        }
        ControlFlow::Continue(())
    }
}

fn control_flow_to_result(flow: ControlFlow<DataFusionError>) -> Result<()> {