Function visit_statement

datafusion/sql/src/resolve.rs:169–191

(statement: &DFStatement, visitor: &mut RelationVisitor)

}

fn visit_statement(statement: &DFStatement, visitor: &mut RelationVisitor) -> Result<()> {
    match statement {
        DFStatement::Statement(s) => {
            control_flow_to_result(s.as_ref().visit(visitor))?;
        }
        DFStatement::CreateExternalTable(table) => {
            control_flow_to_result(visitor.insert_relation(&table.name))?;
        }
        DFStatement::CopyTo(CopyToStatement { source, .. }) => match source {
            CopyToSource::Relation(table_name) => {
                control_flow_to_result(visitor.insert_relation(table_name))?;
            }
            CopyToSource::Query(query) => {
                control_flow_to_result(query.visit(visitor))?;
            }
        },
        DFStatement::Explain(explain) => {
            visit_statement(&explain.statement, visitor)?;
        }
        DFStatement::Reset(_) => {}
    }
    Ok(())
}

/// Collects all tables and views referenced in the SQL statement. CTEs are collected separately.
/// This can be used to determine which tables need to be in the catalog for a query to be planned.