getGroup() returns all comparisons.

Just like saveGroup() saves all.

lib/www/server/lib/comparisons/geometric-differences.js

@@ -330,13 +330,16 @@ async function saveGroup (group, opts = {}) {
 
 async function getGroup (groupName, opts = {}) {
 
+	const client = await pool.connect();
+
+	try {
+
+		if (groupName) {
+
 			const group = (await groups())?.[groupName]?.map( i => i.pid)?.sort();
 
 			if (!group?.length || group?.length < 2) return;
 
-	const client = await pool.connect();
-
-	try {
 
 			const pairs = combinations(group, 2);
 			const flatValues = pairs.flat();
@@ -355,6 +358,11 @@ async function getGroup (groupName, opts = {}) {
 				ORDER BY baseline_pid, monitor_pid
 			`;
 
+			if (!placeholders) {
+				console.log("No pairs found in group");
+				return [];
+			}
+
 			const res = await client.query(text, flatValues);
 			if (!res.rows.length) {
 				console.log("Comparison not found in database");
@@ -369,6 +377,34 @@ async function getGroup (groupName, opts = {}) {
 			} else {
 				return res.rows;
 			}
+
+		} else {
+
+			const selectFields = opts.returnData ? 'data, meta' : 'meta';
+
+			const text = `
+				SELECT baseline_pid, monitor_pid, ${selectFields}
+				FROM comparisons.comparisons
+				WHERE type = 'geometric_difference'
+				ORDER BY baseline_pid, monitor_pid
+			`;
+
+			const res = await client.query(text);
+			if (!res.rows.length) {
+				console.log("Comparison not found in database");
+				return;
+			}
+
+			if (opts.returnData) {
+				return res.rows.map( row => ({
+					...row,
+					data: DougalBinaryBundle.clone(row.data),
+				}));
+			} else {
+				return res.rows;
+			}
+
+		}
 	} catch (err) {
 		console.error(err);
 	} finally {