Method load_names

prqlc/prqlc/src/sql/pq/context.rs:193–207

(
        &mut self,
        pipeline: &[SqlTransform],
        output_cols: Vec<RelationColumn>,
    )

    }

    pub(super) fn load_names(
        &mut self,
        pipeline: &[SqlTransform],
        output_cols: Vec<RelationColumn>,
    ) {
        let output_cids = self.determine_select_columns(pipeline);

        assert_eq!(output_cids.len(), output_cols.len());

        for (cid, col) in zip(output_cids.iter(), output_cols) {
            if let RelationColumn::Single(Some(name)) = col {
                self.column_names.insert(*cid, name);
            }
        }
    }

    pub(super) fn determine_select_columns(&self, pipeline: &[SqlTransform]) -> Vec<CId> {
        use SqlTransform::Super;