Function convert_assignments

nodedb-sql/src/planner/dml_update_delete.rs:272–297

Convert `update.assignments` into `Vec<(col, SqlExpr)>`.

(assignments: &[ast::Assignment])

/// Convert `update.assignments` into `Vec<(col, SqlExpr)>`.
fn convert_assignments(assignments: &[ast::Assignment]) -> Result<Vec<(String, SqlExpr)>> {
    assignments
        .iter()
        .map(|a| {
            let col = match &a.target {
                ast::AssignmentTarget::ColumnName(name) => {
                    if name.0.len() > 1 {
                        return Err(SqlError::Unsupported {
                            detail: format!(
                                "qualified column name in SET target: {SCHEMA_QUALIFIED_MSG}"
                            ),
                        });
                    }
                    normalize_object_name_checked(name)?
                }
                ast::AssignmentTarget::Tuple(names) => names
                    .iter()
                    .map(normalize_object_name_checked)
                    .collect::<Result<Vec<_>>>()?
                    .join(","),
            };
            let val = convert_expr(&a.value)?;
            Ok((col, val))
        })
        .collect()
}

/// Plan a DELETE statement.
pub fn plan_delete(stmt: &ast::Statement, catalog: &dyn SqlCatalog) -> Result<Vec<SqlPlan>> {